Mercurial > hg > audio-features-catalogue
changeset 4:8bd8453e0551
added fuxi facts and rules
| author | nothing@tehis.net |
|---|---|
| date | Tue, 02 Apr 2013 15:33:18 +0100 |
| parents | b08d29ebb928 |
| children | 2c1b44ae88b9 |
| files | af-catalogue.n3 af-catalogue.rdf fca/fcaDotGen.py fca/run.py fcadata/CLAM.cxt fcadata/CLAM.dot fcadata/MIRToolbox.cxt fcadata/MIRToolbox.dot fcadata/Marsyas.cxt fcadata/Marsyas.dot fcadata/PsySound3.cxt fcadata/PsySound3.dot fcadata/SuperCollider.cxt fcadata/SuperCollider.dot fcadata/Vamp.cxt fcadata/Vamp.dot fcadata/Yaafe.cxt fcadata/Yaafe.dot fcadata/aubio.cxt fcadata/aubio.dot fcadata/base.cxt fcadata/base.dot fcadata/comirva.cxt fcadata/comirva.dot fcadata/jMIR.cxt fcadata/jMIR.dot fcadata/libXtract.cxt fcadata/libXtract.dot fcadata/sMIRk.cxt fcadata/sMIRk.dot fuxi/af-facts.n3 fuxi/af-rules.n3 fuxi/convertImplicationstoN3.py pdfextract/graphDefs.py pdfextract/writeBase.py rdf/base.rdf |
| diffstat | 36 files changed, 7921 insertions(+), 7079 deletions(-) [+] |
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--- a/af-catalogue.n3 Mon Apr 01 21:26:45 2013 +0100 +++ b/af-catalogue.n3 Tue Apr 02 15:33:18 2013 +0100 @@ -13,6 +13,7 @@ "Regression", "Root Mean Square", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "modulation frequency" ; af:feature "4HzModulationEnergy" ; @@ -29,6 +30,7 @@ "Discrete Cosine Transform", "Sum, Weighted Sum", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "modulation frequency" ; af:feature "4HzModulationHarmonicCoefficients" ; @@ -65,6 +67,7 @@ af:complexity "medium" ; af:computation "Adaptive Time Frequency Transform", "Spectral binning" ; + af:dimensionality "multi-dimensional" ; af:dimensions "42" ; af:domain "frequency" ; af:feature "AdaptiveTimeFrequencyTransform" ; @@ -99,6 +102,7 @@ "Median", "Spectral binning", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "9" ; af:domain "temporal" ; af:feature "AmplitudeDescriptor" ; @@ -111,6 +115,12 @@ af:computedIn "Yaafe" ; rdfs:subClassOf af:AudioFeature . +af:AmplitudeofEnergyModulation a owl:Class ; + af:computedIn "TimbreToolbox" ; + af:feature "Amplitude of Energy Modulation" ; + af:signal "Temporal Energy Envelope" ; + rdfs:subClassOf af:AudioFeature . + af:AreaMoments a owl:Class ; dc:description "2D statistical method of moments" ; af:computedIn "jMIR" ; @@ -147,7 +157,10 @@ af:Attack a owl:Class ; dc:description "estimates the beginning of the attack phase of a note by locating the local minimum before the maximum corresponding to the onset" ; - af:computedIn "MIRToolbox" ; + af:computedIn "MIRToolbox", + "TimbreToolbox" ; + af:feature "Attack" ; + af:signal "Temporal Energy Envelope" ; af:tag "Timbre" ; rdfs:comment "These can have start time *and end time*" ; rdfs:subClassOf af:AudioFeature . @@ -160,7 +173,10 @@ af:AttackSlope a owl:Class ; dc:description "average slope of attack phase, computed either as a simple ratio, or a Gaussian-weighted average to emphasise the middle of the attack" ; - af:computedIn "MIRToolbox" ; + af:computedIn "MIRToolbox", + "TimbreToolbox" ; + af:feature "Attack Slope" ; + af:signal "Temporal Energy Envelope" ; af:tag "Timbre" ; rdfs:subClassOf af:AudioFeature . @@ -223,6 +239,7 @@ "Energy Spectral Density", "Root Mean Square", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "62" ; af:domain "modulation frequency" ; af:feature "AuditoryFilterBankTemporalEnvelopes" ; @@ -246,6 +263,7 @@ "Low-pass Filter", "Regression", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "cepstral" ; af:feature "AutocorrelationMFCCs" ; @@ -262,6 +280,7 @@ "Root Mean Square", "Sum, Weighted Sum", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "4" ; af:domain "modulation frequency" ; af:feature "BandPeriodicity" ; @@ -269,6 +288,22 @@ af:temporalscale "interframe" ; rdfs:subClassOf af:AudioFeature . +af:BandSpectralDeviation a owl:Class ; + af:Dimensions "3" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Band Spectral Deviation" ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:BandTristimulus a owl:Class ; + af:Dimensions "9" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Band Tristimulus" ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + af:Bandwidth a owl:Class ; af:appdomain "several" ; af:complexity "low" ; @@ -277,6 +312,7 @@ "Median", "Regression", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "Bandwidth" ; @@ -329,6 +365,7 @@ "Windowing" ; af:computedIn "Marsyas", "jMIR" ; + af:dimensionality "multi-dimensional" ; af:dimensions "6" ; af:domain "modulation frequency" ; af:feature "BeatHistogram" ; @@ -414,6 +451,7 @@ "Normalization", "Root Mean Square", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "12" ; af:domain "frequency" ; af:feature "ChromaCENSFeatures" ; @@ -442,6 +480,7 @@ af:computedIn "MIRToolbox", "SuperCollider", "Vamp" ; + af:dimensionality "multi-dimensional" ; af:dimensions "12" ; af:domain "frequency" ; af:feature "Chromagram", @@ -527,6 +566,7 @@ "Low-pass Filter", "Root Mean Square", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "modulation frequency" ; af:feature "CyclicBeatSpectrum" ; @@ -542,6 +582,7 @@ "Root Mean Square", "Spectral binning", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "modulation frequency" ; af:feature "DWPTbasedRhythmFeature" ; @@ -560,6 +601,7 @@ af:computation "Discrete Wavelet Transform", "Spectral binning", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "28" ; af:domain "frequency" ; af:feature "DaubechiesWaveletCoefficientHistogram" ; @@ -571,6 +613,12 @@ af:computedIn "libXtract" ; rdfs:subClassOf af:AudioFeature . +af:Decay a owl:Class ; + af:computedIn "TimbreToolbox" ; + af:feature "Decay" ; + af:signal "Temporal Energy Envelope" ; + rdfs:subClassOf af:AudioFeature . + af:Decaytime a owl:Class ; af:computedIn "libXtract" ; rdfs:subClassOf af:AudioFeature . @@ -588,6 +636,28 @@ af:tag "Audio" ; rdfs:subClassOf af:AudioFeature . +af:DecreaseSlope a owl:Class ; + af:computedIn "TimbreToolbox" ; + af:feature "DecreaseSlope" ; + af:signal "Temporal Energy Envelope" ; + rdfs:subClassOf af:AudioFeature . + +af:DeltaDeltaMfcc a owl:Class ; + af:Dimensions "12" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Delta Delta MFCC" ; + af:typeOfFeature "Spectral Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:DeltaMfcc a owl:Class ; + af:Dimensions "12" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Delta MFCC" ; + af:typeOfFeature "Spectral Feature" ; + rdfs:subClassOf af:AudioFeature . + af:DeltaSpectralPattern a owl:Class ; af:author "Klaus Seyerlehner" ; af:computedIn "MIREX" ; @@ -650,6 +720,7 @@ "Modulated Complex Lapped Transform", "Principal Component Analysis", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "64" ; af:domain "eigendomain" ; af:feature "DistortionDiscriminantAnalysis" ; @@ -657,6 +728,16 @@ af:temporalscale "interframe" ; rdfs:subClassOf af:AudioFeature . +af:EffectiveDuration a owl:Class ; + af:Dimensions "1" ; + af:FrameBased "n" ; + af:computedIn "TimbreToolbox", + "cuidado" ; + af:feature "Effective Duration" ; + af:signal "Temporal Energy Envelope" ; + af:typeOfFeature "GlobalTemporalFeature" ; + rdfs:subClassOf af:AudioFeature . + af:Energy a owl:Class ; dc:description "Compute energy as root mean square of an audio Frame.", "compute the Energy of the input observations into one column*/", @@ -748,13 +829,26 @@ af:computedIn "Yaafe" ; rdfs:subClassOf af:AudioFeature . +af:FrequencyofEnergyModulation a owl:Class ; + af:computedIn "TimbreToolbox" ; + af:feature "Frequency of Energy Modulation" ; + af:signal "Temporal Energy Envelope" ; + rdfs:subClassOf af:AudioFeature . + af:FundamentalFrequency a owl:Class ; dc:description "Extract the fundamental frequency of an audio signal" ; - af:computedIn "Vamp" ; + af:Dimensions "1" ; + af:FrameBased "y" ; + af:computedIn "TimbreToolbox", + "Vamp", + "cuidado" ; af:domain "time" ; - af:feature "Fundamental Frequency" ; + af:feature "Fundamental Frequency", + "Fundamental frequency" ; af:output "Dense" ; + af:signal "Harmonic" ; af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; + af:typeOfFeature "Harmonic Feature" ; rdfs:subClassOf af:AudioFeature . <http://sovarr.c4dm.eecs.qmul.ac.uk/features/FundamentalFrequency(failsafe)> a owl:Class ; @@ -766,6 +860,14 @@ af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; rdfs:subClassOf af:AudioFeature . +af:FundamentalFrequencyModulation a owl:Class ; + af:Dimensions "2" ; + af:FrameBased "n" ; + af:computedIn "cuidado" ; + af:feature "Fundamental Frequency Modulation" ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + af:GeometricMean a owl:Class ; dc:description "the geometric mean for the spectral power values sequence" ; af:computedIn "CLAM" ; @@ -779,6 +881,14 @@ af:source "MIREX 2012" ; rdfs:subClassOf af:AudioFeature . +af:GlobalSpectralShapeDescription a owl:Class ; + af:Dimensions "y" ; + af:FrameBased "MFCC" ; + af:computedIn "cuidado" ; + af:feature "Global Spectral Shape Description" ; + af:typeOfFeature "Spectral Feature" ; + rdfs:subClassOf af:AudioFeature . + af:HarmonicChangeValue a owl:Class ; af:computedIn "Vamp" ; af:domain "frequency" ; @@ -793,6 +903,7 @@ af:computation "Autocorrelation", "Sum, Weighted Sum", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "HarmonicCoefficient" ; @@ -805,9 +916,10 @@ af:complexity "medium" ; af:computation "Discrete Fourier Transform", "Energy Spectral Density", + "Level Crossing Detector", "Root Mean Square", - "Windowing", - "Zero-/Level Crossing Detector" ; + "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "HarmonicConcentration" ; @@ -822,6 +934,7 @@ "Discrete Fourier Transform", "Logarithm", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency" ; af:feature "HarmonicDerivate" ; @@ -829,13 +942,20 @@ af:temporalscale "intraframe" ; rdfs:subClassOf af:AudioFeature . +af:HarmonicEnergy a owl:Class ; + af:computedIn "TimbreToolbox" ; + af:feature "Harmonic Energy" ; + af:signal "Harmonic" ; + rdfs:subClassOf af:AudioFeature . + af:HarmonicEnergyEntropy a owl:Class ; af:appdomain "music information retrieval" ; af:complexity "medium" ; af:computation "Discrete Fourier Transform", "Entropy", - "Windowing", - "Zero-/Level Crossing Detector" ; + "Level Crossing Detector", + "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "HarmonicEnergyEntropy" ; @@ -856,8 +976,9 @@ af:appdomain "environmental sound recognition" ; af:complexity "medium" ; af:computation "Autocorrelation", - "Windowing", - "Zero-/Level Crossing Detector" ; + "Level Crossing Detector", + "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "HarmonicProminence" ; @@ -865,16 +986,12 @@ af:temporalscale "intraframe" ; rdfs:subClassOf af:AudioFeature . -af:HarmonicSpectralFlux a owl:Class ; - dc:description "Cacluate the correlation bettween adjacent frames based peaks instead of spectral bins. Peak tracking is primitive - whe the number of bins changes, the bottom bins are matched sequentially and the extra unmatched bins are ignored.) definition = new FeatureDefinition(name, description, true, 1) dependencies = new String[] { Peak Detection, Peak Detection } offsets = new int[] { 0, -1 } } /** * Extract the peak based spectral flux from the window. * @param samples * The samples to extract the feature from. * @param sampling_rate * The sampling rate that the samples are encoded with. * @param other_feature_values * The values of other features that are needed to calculate this * value. The order and offsets of these features must be the * same as those returned by this class's getDependencies and * getDependencyOffsets methods respectively. The first indice * indicates the feature/window and the second indicates the * value. * @return The extracted feature value(s). * @throws Exception * Throws an informative exception if the feature cannot be * calculated. * @see jAudioFeatureExtractor.AudioFeatures.FeatureExtractor#extractFeature(double[], * double, double[][]) */ public double[] extractFeature(double[] samples, double sampling_rate, double[][] other_feature_values) { double[] result = new double[1] double[] old = other_feature_values[1] double[] now = other_feature_values[0] double x, y, xy, x2, y2 x = y = xy = x2 = y2 = 0.0 int peakCount = Math.min(old.length, now.length) for (int i = 0 i < peakCount i) { x = old[i] y = now[i] xy = old[i] * now[i] x2 = old[i] * old[i] y2 = now[i] * now[i] } double top = xy - (x * y) / peakCount double bottom = Math.sqrt(Math.abs((x2 - ((x * x) / peakCount)) * (y2 - ((y * y) / peakCount)))) result[0] = top / bottom return result } /** * Proviede a complete copy of this feature. Used to implement the prottype * pattern */ public Object clone() { return new HarmonicSpectralFlux() } }" ; - af:computedIn "jMIR" ; - af:name "Partial Based Spectral Flux" ; - rdfs:subClassOf af:AudioFeature . - -af:HarmonicSpectralSmoothness a owl:Class ; - dc:description "Peak Based Spectral Smoothness is calculated from partials, not frequency bins. It is implemented accortding to McAdams 99 System.getProperty(line.separator) System.getProperty(line.separator) McAdams, S. 1999." ; - af:computedIn "jMIR" ; - af:name "Peak Based Spectral Smoothness" ; +af:HarmonicSpectralKurtosis a owl:Class ; + af:Dimensions "6" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Harmonic Spectral kurtosis" ; + af:typeOfFeature "Harmonic Feature" ; rdfs:subClassOf af:AudioFeature . af:HarmonicSpectrum a owl:Class ; @@ -887,6 +1004,14 @@ af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; rdfs:subClassOf af:AudioFeature . +af:HarmonicTristimulus a owl:Class ; + af:Dimensions "9" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Harmonic Tristimulus" ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + af:HighFrequencyContent a owl:Class ; dc:description "sum of the squared spectrum magnitude multiplied by the wave number of the bin" ; af:computedIn "CLAM" ; @@ -919,22 +1044,29 @@ af:Inharmonicity a owl:Class ; dc:description "Extract the inharmonicity of an audio spectrum", "the amount of partials that are not multiples of the fundamental frequency, takes into account the amount of energy outside the ideal harmonic series" ; + af:Dimensions "1" ; + af:FrameBased "y" ; af:appdomain "music information retrieval" ; af:complexity "medium" ; af:computation "Autocorrelation", + "Level Crossing Detector", "Median", - "Windowing", - "Zero-/Level Crossing Detector" ; + "Windowing" ; af:computedIn "MIRToolbox", - "Vamp" ; + "TimbreToolbox", + "Vamp", + "cuidado" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "Inharmonicity" ; af:level "perceptual" ; af:output "Dense" ; + af:signal "Harmonic" ; af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; af:tag "Pitch" ; af:temporalscale "intraframe" ; + af:typeOfFeature "Harmonic Feature" ; rdfs:subClassOf af:AudioFeature . af:IntegralLoudness a owl:Class ; @@ -946,6 +1078,7 @@ "Logarithm", "Root Mean Square", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "IntegralLoudness" ; @@ -963,6 +1096,7 @@ "Regression", "Root Mean Square", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "modulation frequency" ; af:feature "JointAcousticandModuluationFrequency" ; @@ -1036,6 +1170,7 @@ "Percentile", "Windowing" ; af:computedIn "Yaafe" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency" ; af:feature "LineSpectralFrequencies" ; @@ -1056,6 +1191,7 @@ af:computedIn "Marsyas", "Vamp", "libXtract" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "cepstral", "time" ; @@ -1073,6 +1209,7 @@ af:computation "Autoregression (Linear Prediction Analysis)", "Spectral binning", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "temporal" ; af:feature "LinearPredictionZCR" ; @@ -1096,6 +1233,7 @@ "jMIR", "libXtract", "sMIRk" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency" ; af:feature "LinearPredictiveCoding" ; @@ -1125,8 +1263,16 @@ af:LogAttackTime a owl:Class ; dc:description "the base 10 logarithm of the rise time" ; - af:computedIn "CLAM" ; + af:Dimensions "1" ; + af:FrameBased "n" ; + af:computedIn "CLAM", + "TimbreToolbox", + "cuidado" ; + af:feature "Log Attack Time", + "Log-Attack Time" ; + af:signal "Temporal Energy Envelope" ; af:tag "Audio" ; + af:typeOfFeature "GlobalTemporalFeature" ; rdfs:subClassOf af:AudioFeature . af:LogConstantQ a owl:Class ; @@ -1154,15 +1300,19 @@ dc:description "A perceptual loudness function which outputs loudness in sones; this is a variant of an MP3 perceptual model, summing excitation in ERB bands. It models simple spectral and temporal masking, with equal loudness contour correction in ERB bands to obtain phons (relative dB), then a phon to sone transform. The final output is typically in the range of 0 to 64 sones, though higher values can occur with specific synthesised stimuli.", "Extract the loudness of an audio signal from its spectrum", "The loudness coefficients are the energy in each Bark band, normalized by the overall sum. see [GP2004]_ and [MG1997]_ for more details." ; + af:Dimensions "1" ; + af:FrameBased "y" ; af:computedIn "PsySound3", "SuperCollider", "Vamp", "Yaafe", + "cuidado", "libXtract" ; af:domain "frequency" ; af:feature "Loudness" ; af:output "Dense" ; af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; + af:typeOfFeature "Perceptual Feature" ; rdfs:subClassOf af:AudioFeature . af:LowEnergy a owl:Class ; @@ -1207,6 +1357,7 @@ "Sum, Weighted Sum", "Windowing" ; af:computedIn "MPEG-7" ; + af:dimensionality "multi-dimensional" ; af:dimensions "2" ; af:domain "frequency" ; af:feature "MPEG7AudioFundamentalFrequency" ; @@ -1221,6 +1372,7 @@ "Sum, Weighted Sum", "Windowing" ; af:computedIn "MPEG-7" ; + af:dimensionality "multi-dimensional" ; af:dimensions "2" ; af:domain "frequency" ; af:feature "MPEG7AudioHarmonicity" ; @@ -1239,6 +1391,7 @@ "Singular Value Decomposition", "Windowing" ; af:computedIn "MPEG-7" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "eigendomain" ; af:feature "MPEG7AudioSpectrumBasis" ; @@ -1252,6 +1405,7 @@ "Sum, Weighted Sum", "Windowing" ; af:computedIn "MPEG-7" ; + af:dimensionality "multi-dimensional" ; af:dimensions "2" ; af:domain "temporal" ; af:feature "MPEG7AudioWaveform" ; @@ -1267,6 +1421,7 @@ "Root Mean Square", "Windowing" ; af:computedIn "MPEG-7" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "temporal" ; af:feature "MPEG7LogAttackTime" ; @@ -1374,6 +1529,7 @@ "Group Delay Function", "Low-pass Filter", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency" ; af:feature "ModifiedGroupDelay" ; @@ -1407,6 +1563,7 @@ "Normalization", "Regression", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency" ; af:feature "MultiresolutionEntropy" ; @@ -1422,6 +1579,12 @@ af:source "Matthias Mauch" ; rdfs:subClassOf af:AudioFeature . +af:NoiseEnergy a owl:Class ; + af:computedIn "TimbreToolbox" ; + af:feature "Noise Energy" ; + af:signal "Harmonic" ; + rdfs:subClassOf af:AudioFeature . + af:NoiseRobustAuditoryFeature a owl:Class ; af:appdomain "environmental sound recognition" ; af:complexity "high" ; @@ -1432,6 +1595,7 @@ "Logarithm", "Low-pass Filter", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "256" ; af:domain "cepstral" ; af:feature "NoiseRobustAuditoryFeature" ; @@ -1442,12 +1606,18 @@ af:Noisiness a owl:Class ; dc:description "Extract the noisiness of an audio spectrum" ; - af:computedIn "Vamp", + af:Dimensions "1" ; + af:FrameBased "y" ; + af:computedIn "TimbreToolbox", + "Vamp", + "cuidado", "libXtract" ; af:domain "frequency" ; af:feature "Noisiness" ; af:output "Dense" ; + af:signal "Harmonic" ; af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; + af:typeOfFeature "Harmonic Feature" ; rdfs:subClassOf af:AudioFeature . af:Nonzerocount a owl:Class ; @@ -1493,6 +1663,14 @@ af:source "MIREX" ; rdfs:subClassOf af:AudioFeature . +af:OddToEvenBandRatio a owl:Class ; + af:Dimensions "3" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Odd to Even Band Ratio" ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + af:Oddevenratio a owl:Class ; af:computedIn "libXtract" ; rdfs:subClassOf af:AudioFeature . @@ -1550,6 +1728,7 @@ "Discrete Fourier Transform", "Regression", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "cepstral" ; af:feature "PerceptualLinearPrediction" ; @@ -1563,6 +1742,22 @@ af:computedIn "Yaafe" ; rdfs:subClassOf af:AudioFeature . +af:PerceptualSpectralEnvelopeShape a owl:Class ; + af:Dimensions "y" ; + af:FrameBased "Perceptual Spectral centroid" ; + af:computedIn "cuidado" ; + af:feature "Perceptual Spectral Envelope Shape" ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:PerceptualSpectralVariation a owl:Class ; + af:Dimensions "3" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Perceptual Spectral Variation" ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + af:PerceptualSpread a owl:Class ; dc:description "Compute the spread of :class:Loudness coefficients, according to [GP2004]_." ; af:computedIn "Yaafe" ; @@ -1578,6 +1773,7 @@ af:complexity "high" ; af:computation "Phase Space Embedding", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "phase space" ; af:feature "PhaseSpaceFeatures" ; @@ -1596,6 +1792,7 @@ af:computedIn "MIRToolbox", "SuperCollider", "aubio" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "Pitch" ; @@ -1642,6 +1839,7 @@ "Root Mean Square", "Spectral binning", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency" ; af:feature "PitchHistogram" ; @@ -1662,6 +1860,7 @@ "Spectral binning", "Sum, Weighted Sum", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "12" ; af:domain "frequency" ; af:feature "PitchProfile" ; @@ -1684,6 +1883,7 @@ "Spectral binning", "Sum, Weighted Sum", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "temporal" ; af:feature "PitchSynchronousZCPA" ; @@ -1739,6 +1939,7 @@ "Autocorrelation", "Band-pass Filter (Bank)", "Root Mean Square" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency" ; af:feature "PsychoacousticalPitch" ; @@ -1760,6 +1961,7 @@ "Band-pass Filter (Bank)", "Root Mean Square", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "modulation frequency" ; af:feature "PulseMetric" ; @@ -1786,6 +1988,12 @@ af:tag "Dynamics" ; rdfs:subClassOf af:AudioFeature . +af:RMSEnergyEnvelope a owl:Class ; + af:computedIn "TimbreToolbox" ; + af:feature "RMS-Energy Envelope" ; + af:signal "Temporal Energy Envelope" ; + rdfs:subClassOf af:AudioFeature . + af:RatescalefrequencyFeatures a owl:Class ; af:appdomain "environmental sound recognition" ; af:complexity "high" ; @@ -1797,6 +2005,7 @@ "Principal Component Analysis", "Root Mean Square", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "256" ; af:domain "eigendomain" ; af:feature "RatescalefrequencyFeatures" ; @@ -1805,6 +2014,14 @@ af:temporalscale "interframe" ; rdfs:subClassOf af:AudioFeature . +af:RelaitvespecificLoudness a owl:Class ; + af:Dimensions "24" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "RelaitveSpecific Loudness" ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + af:RelativeDifferenceFunction a owl:Class ; dc:description "Relative Difference Function" ; af:computedIn "jMIR" ; @@ -1824,6 +2041,7 @@ "Logarithm", "Regression", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "cepstral" ; af:feature "RelativeSpectralPLP" ; @@ -1832,6 +2050,12 @@ af:temporalscale "intraframe" ; rdfs:subClassOf af:AudioFeature . +af:Release a owl:Class ; + af:computedIn "TimbreToolbox" ; + af:feature "Release" ; + af:signal "Temporal Energy Envelope" ; + rdfs:subClassOf af:AudioFeature . + af:RhythmHistogram a owl:Class ; af:author "T. Lidy" ; af:computedIn "MIREX" ; @@ -1911,6 +2135,8 @@ rdfs:subClassOf af:AudioFeature . af:Sharpness a owl:Class ; + af:Dimensions "1" ; + af:FrameBased "y" ; af:appdomain "several" ; af:complexity "medium" ; af:computation "(Non-) Linear Weighting Function", @@ -1919,13 +2145,16 @@ "Regression", "Windowing" ; af:computedIn "PsySound3", + "cuidado", "libXtract" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "Sharpness" ; af:level "perceptual" ; af:model "psychoacoustic" ; af:temporalscale "intraframe" ; + af:typeOfFeature "Perceptual Feature" ; rdfs:subClassOf af:AudioFeature . af:ShortTimeEnergy a owl:Class ; @@ -1933,6 +2162,7 @@ af:complexity "low" ; af:computation "Deviation, Sum of Differences", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "temporal" ; af:feature "ShortTimeEnergy" ; @@ -1940,6 +2170,14 @@ af:temporalscale "intraframe" ; rdfs:subClassOf af:AudioFeature . +af:SignalAutoCorrelationFunction a owl:Class ; + af:Dimensions "12" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Signal Auto-correlation function" ; + af:typeOfFeature "GlobalTemporalFeature" ; + rdfs:subClassOf af:AudioFeature . + af:SilenceTest a owl:Class ; af:computedIn "Vamp" ; af:domain "time" ; @@ -1982,6 +2220,7 @@ "Low-pass Filter", "Regression", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency" ; af:feature "Sone" ; @@ -1997,6 +2236,7 @@ "Energy Spectral Density", "Harmonic Peak Detection", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "SpectralCenter" ; @@ -2012,6 +2252,8 @@ "The spectral centroid represents the barycenter of the spectrum.", "the frequency where the center of mass of the spectral power distribution lies", "the weighted mean frequency, or the \"centre of mass\" of the spectrum" ; + af:Dimensions "6" ; + af:FrameBased "y" ; af:appdomain "several" ; af:complexity "low" ; af:computation "Discrete Fourier Transform", @@ -2022,24 +2264,32 @@ af:computedIn "CLAM", "Marsyas", "SuperCollider", + "TimbreToolbox", "Vamp", "aubio", + "cuidado", "jMIR", "libXtract", "sMIRk" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency", "time" ; af:feature "Marsyas - Batch Feature Extract - Centroid", "Spectral Centroid", + "Spectral centroid", "SpectralCentroid" ; af:level "perceptual" ; af:name "Spectral Centroid" ; af:output "Dense" ; + af:signal "Auditory model", + "Harmonic", + "Short-term Fourier Transform" ; af:source "Marsyas Plugins", "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; af:tag "Spectral" ; af:temporalscale "intraframe" ; + af:typeOfFeature "Spectral Feature" ; rdfs:subClassOf af:AudioFeature . af:SpectralContrastPattern a owl:Class ; @@ -2052,6 +2302,8 @@ af:SpectralCrest a owl:Class ; dc:description "Extract the spectral crest measure of an audio spectrum", "produces the spectral crest measure, which is an indicator of the \"peakiness\" of the spectral energy distribution" ; + af:Dimensions "4" ; + af:FrameBased "y" ; af:appdomain "fingerprinting" ; af:complexity "low" ; af:computation "Discrete Fourier Transform", @@ -2061,15 +2313,23 @@ "Sum, Weighted Sum", "Windowing" ; af:computedIn "SuperCollider", - "Vamp" ; + "TimbreToolbox", + "Vamp", + "cuidado" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency" ; - af:feature "Spectral Crest Measure", + af:feature "Spectral Crest", + "Spectral Crest Measure", + "Spectral crest", "SpectralCrest" ; af:level "perceptual" ; af:output "Dense" ; + af:signal "Auditory model", + "Short-term Fourier Transform" ; af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; af:temporalscale "intraframe" ; + af:typeOfFeature "Various Feature" ; rdfs:subClassOf af:AudioFeature . af:SpectralCrestFactor a owl:Class ; @@ -2089,8 +2349,18 @@ af:SpectralDecrease a owl:Class ; dc:description "Compute spectral decrease accoding to [GP2004]_.", "The spectral decrease is another representation of the decreasing rate, based on perceptual criteria." ; - af:computedIn "Yaafe", - "aubio" ; + af:Dimensions "1" ; + af:FrameBased "y" ; + af:computedIn "TimbreToolbox", + "Yaafe", + "aubio", + "cuidado" ; + af:feature "Spectral Decrease", + "Spectral decrease" ; + af:signal "Auditory model", + "Harmonic", + "Short-term Fourier Transform" ; + af:typeOfFeature "Spectral Feature" ; rdfs:subClassOf af:AudioFeature . af:SpectralDifferenceMethodOnsetDetectionFunction a owl:Class ; @@ -2106,6 +2376,7 @@ "Harmonic Peak Detection", "Median", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "SpectralDispersion" ; @@ -2135,6 +2406,7 @@ "jMIR", "libXtract", "sMIRk" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "SpectralFlux" ; @@ -2154,15 +2426,24 @@ "Extract the kurtosis of an audio spectrum", "Kurtosis", "The kurtosis is a measure of the flatness of the spectrum, computed from the fourth order moment." ; + af:Dimensions "6" ; + af:FrameBased "y" ; af:computedIn "Marsyas", + "TimbreToolbox", "Vamp", "aubio", + "cuidado", "libXtract" ; af:domain "frequency" ; af:feature "Kurtosis", - "Spectral Kurtosis" ; + "Spectral Kurtosis", + "Spectral kurtosis" ; af:output "Dense" ; + af:signal "Auditory model", + "Harmonic", + "Short-term Fourier Transform" ; af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; + af:typeOfFeature "Spectral Feature" ; rdfs:subClassOf af:AudioFeature . af:SpectralPeakStructure a owl:Class ; @@ -2171,9 +2452,10 @@ af:computation "Derivation, Difference", "Discrete Fourier Transform", "Entropy", + "Level Crossing Detector", "Spectral binning", - "Windowing", - "Zero-/Level Crossing Detector" ; + "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "SpectralPeakStructure" ; @@ -2195,6 +2477,8 @@ "The frequency below which 85% of the energy is contained. The percentage may be user-chosen", "The spectral roll-off point is the frequency value so that the 85% of the spectral energy is contained below it", "This function returns the bin number below which 95% of the spectrum energy is found." ; + af:Dimensions "1" ; + af:FrameBased "y" ; af:appdomain "several" ; af:complexity "low" ; af:computation "Discrete Fourier Transform", @@ -2203,26 +2487,34 @@ af:computedIn "CLAM", "MIRToolbox", "Marsyas", + "TimbreToolbox", "Vamp", "Yaafe", "aubio", + "cuidado", "jMIR", "libXtract", "sMIRk" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency", "time" ; af:feature "Marsyas - Batch Feature Extract - Spectral Rolloff", "Spectral Rolloff", + "Spectral rolloff", "SpectralRolloff" ; af:level "perceptual" ; af:name "Spectral Rolloff Point" ; af:output "Dense" ; + af:signal "Auditory model", + "Harmonic", + "Short-term Fourier Transform" ; af:source "Marsyas Plugins", "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; af:tag "Spectral", "Timbre" ; af:temporalscale "intraframe" ; + af:typeOfFeature "Spectral Feature" ; rdfs:subClassOf af:AudioFeature . af:SpectralShapeDescriptors a owl:Class ; @@ -2230,34 +2522,6 @@ af:computedIn "aubio" ; rdfs:subClassOf af:AudioFeature . -af:SpectralSlope a owl:Class ; - dc:description "Extract the spectral slope of an audio spectrum", - "SpectralSlope is computed by linear regression of the spectral amplitude. (see [GP2004]_)", - "The spectral slope represents decreasing rate of the spectral amplitude, computed using a linear regression.", - "measures the spectral slope, which is the slope of the linear correlation line derived from the spectral magnitudes", - "the amount of decreasing of the spectral magnitude" ; - af:appdomain "several" ; - af:complexity "low" ; - af:computation "Discrete Fourier Transform", - "Peak Detection", - "Windowing" ; - af:computedIn "CLAM", - "SuperCollider", - "Vamp", - "Yaafe", - "aubio", - "libXtract" ; - af:dimensions "4" ; - af:domain "frequency" ; - af:feature "Spectral Slope", - "SpectralSlope" ; - af:level "physical" ; - af:output "Dense" ; - af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; - af:tag "Spectral" ; - af:temporalscale "intraframe" ; - rdfs:subClassOf af:AudioFeature . - af:SpectralSmoothness a owl:Class ; dc:description "Extract the spectral smoothness of an audio spectrum" ; af:computedIn "Vamp" ; @@ -2272,16 +2536,28 @@ "The spectral spread is the variance of the spectral distribution around its centroid.", "measures the spectral spread, which is the magnitude-weighted variance", "the variation of the spectrum around its mean value." ; + af:Dimensions "1", + "6" ; + af:FrameBased "y" ; af:computedIn "CLAM", "SuperCollider", + "TimbreToolbox", "Vamp", "aubio", + "cuidado", "libXtract" ; af:domain "frequency" ; - af:feature "Spectral Spread" ; + af:feature "Spectral Spread", + "Spectral spread", + "Spread" ; af:output "Dense" ; + af:signal "Auditory model", + "Harmonic", + "Short-term Fourier Transform" ; af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; af:tag "Spectral" ; + af:typeOfFeature "Perceptual Feature", + "Spectral Feature" ; rdfs:subClassOf af:AudioFeature . af:SpectralVariability a owl:Class ; @@ -2294,6 +2570,14 @@ af:computedIn "libXtract" ; rdfs:subClassOf af:AudioFeature . +af:SpectrotemporalVariation a owl:Class ; + af:computedIn "TimbreToolbox" ; + af:feature "Spectro-temporal Variation" ; + af:signal "Auditory model", + "Harmonic", + "Short-term Fourier Transform" ; + rdfs:subClassOf af:AudioFeature . + af:Spectrum a owl:Class ; dc:description "Compute the complex spectrum of input window", "Extract the spectrum of an audio signal" ; @@ -2364,6 +2648,7 @@ "Normalization", "Regression", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency" ; af:feature "SubbandEnergyRatio" ; @@ -2381,6 +2666,7 @@ "Normalization", "Regression", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "8" ; af:domain "frequency" ; af:feature "SubbandSpectralFlux" ; @@ -2432,8 +2718,15 @@ af:TemporalCentroid a owl:Class ; dc:description "time where signal energy is \"concentrated\"" ; - af:computedIn "CLAM" ; + af:Dimensions "1" ; + af:FrameBased "n" ; + af:computedIn "CLAM", + "TimbreToolbox", + "cuidado" ; + af:feature "Temporal Centroid" ; + af:signal "Temporal Energy Envelope" ; af:tag "Audio" ; + af:typeOfFeature "GlobalTemporalFeature" ; rdfs:subClassOf af:AudioFeature . af:TemporalRhythmHistogram a owl:Class ; @@ -2495,6 +2788,38 @@ af:source "Queen Mary, University of London" ; rdfs:subClassOf af:AudioFeature . +af:TotalEnergy a owl:Class ; + af:Dimensions "1" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Total energy" ; + af:typeOfFeature "Energy Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:TotalEnergyModulation a owl:Class ; + af:Dimensions "2" ; + af:FrameBased "n" ; + af:computedIn "cuidado" ; + af:feature "Total Energy Modulation" ; + af:typeOfFeature "Energy Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:TotalHarmonicEnergy a owl:Class ; + af:Dimensions "1" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Total harmonic energy" ; + af:typeOfFeature "Energy Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:TotalNoiseEnergy a owl:Class ; + af:Dimensions "1" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Total noise energy" ; + af:typeOfFeature "Energy Feature" ; + rdfs:subClassOf af:AudioFeature . + af:Transformto6DTonalContentSpace a owl:Class ; af:computedIn "Vamp" ; af:domain "time" ; @@ -2546,6 +2871,7 @@ af:complexity "low" ; af:computation "Power", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "temporal" ; af:feature "Volume" ; @@ -2571,6 +2897,7 @@ "Root Mean Square", "Spectral binning", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "temporal" ; af:feature "ZeroCrossingPeakAmplitudes" ; @@ -2588,6 +2915,8 @@ "The number of times the waveform changed sign. An indication of frequency as well as noisiness.", "Time-domain ZeroCrossings", "a measure of the number of time the signal value cross the zero axe, averaged over the whole signal" ; + af:Dimensions "1" ; + af:FrameBased "y" ; af:abbreviation "ZCR" ; af:appdomain "several" ; af:complexity "low" ; @@ -2597,11 +2926,14 @@ "MIRToolbox", "Marsyas", "SuperCollider", + "TimbreToolbox", "Vamp", "Yaafe", + "cuidado", "jMIR", "libXtract", "sMIRk" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "temporal", "time" ; @@ -2612,11 +2944,13 @@ af:level "physical" ; af:name "Zero Crossings" ; af:output "Dense" ; + af:signal "Audio Signal" ; af:source "Marsyas Plugins", "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; af:tag "Audio", "Timbre" ; af:temporalscale "intraframe" ; + af:typeOfFeature "GlobalTemporalFeature" ; rdfs:subClassOf af:AudioFeature . af:evenHarmonicRatio a owl:Class ; @@ -2689,6 +3023,7 @@ "Compute the generalized autocorrelation of input window", "Extract the autocorrelation of an audio signal" ; af:computedIn "Marsyas", + "TimbreToolbox", "Vamp", "Yaafe", "libXtract", @@ -2696,6 +3031,7 @@ af:domain "time" ; af:feature "Autocorrelation" ; af:output "Dense" ; + af:signal "Audio Signal" ; af:similarTo af:Autocorrelationfft ; af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; rdfs:subClassOf af:AudioFeature . @@ -2766,6 +3102,7 @@ "Logarithm", "Regression", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "cepstral" ; af:feature "BarkscaleFrequencyCepstralCoefficients" ; @@ -2799,9 +3136,48 @@ af:HarmonicSpectralCentroid a owl:Class ; dc:description "Spectral Centroid calculated based on the center of mass of partials instead of center of mass of bins." ; - af:computedIn "jMIR" ; + af:Dimensions "6" ; + af:FrameBased "y" ; + af:computedIn "cuidado", + "jMIR" ; + af:feature "Harmonic Spectral centroid" ; af:name "Partial Based Spectral Centroid" ; af:similarTo af:MPEG7HarmonicSpectralCentroid ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:HarmonicSpectralDecrease a owl:Class ; + af:Dimensions "1" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Harmonic Spectral decrease" ; + af:similarTo af:HarmonicSpectralSpread ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:HarmonicSpectralRolloff a owl:Class ; + af:Dimensions "1" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Harmonic Spectral rolloff" ; + af:similarTo af:HarmonicSpectralSlope ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:HarmonicSpectralSkewness a owl:Class ; + af:Dimensions "6" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Harmonic Spectral skewness" ; + af:similarTo af:HarmonicSpectralSmoothness ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:HarmonicSpectralSmoothness a owl:Class ; + dc:description "Peak Based Spectral Smoothness is calculated from partials, not frequency bins. It is implemented accortding to McAdams 99 System.getProperty(line.separator) System.getProperty(line.separator) McAdams, S. 1999." ; + af:computedIn "jMIR" ; + af:name "Peak Based Spectral Smoothness" ; + af:similarTo af:HarmonicSpectralSkewness ; rdfs:subClassOf af:AudioFeature . af:HighestValue a owl:Class ; @@ -2874,6 +3250,7 @@ "Regression", "Windowing" ; af:computedIn "MPEG-7" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "MPEG7AudioSpectrumCentroid" ; @@ -2892,6 +3269,7 @@ "Regression", "Windowing" ; af:computedIn "MPEG-7" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "MPEG7AudioSpectrumSpread" ; @@ -2907,6 +3285,7 @@ af:computation "Discrete Fourier Transform", "Mean" ; af:computedIn "MPEG-7" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "MPEG7SpectralCentroid" ; @@ -2922,6 +3301,7 @@ "Power", "Windowing" ; af:computedIn "MPEG-7" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "temporal" ; af:feature "MPEG7TemporalCentroid" ; @@ -2939,6 +3319,8 @@ "MFCC calculations based upon Orange Cow code", "Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients", "Mel-frequency cepstrum coefficients object" ; + af:Dimensions "12" ; + af:FrameBased "y" ; af:abbreviation "MFCC" ; af:appdomain "several" ; af:complexity "high" ; @@ -2955,13 +3337,16 @@ "Yaafe", "aubio", "comirva", + "cuidado", "jMIR", "libXtract" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "cepstral", "frequency", "time" ; af:feature "Coefficients (Mel-Frequency Cepstral Coefficients)", + "MFCC", "Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients", "Mel-Frequency Cepstral Coefficients", "MelscaleFrequencyCepstralCoefficients" ; @@ -2976,6 +3361,7 @@ af:tag "Spectral", "Timbre" ; af:temporalscale "intraframe" ; + af:typeOfFeature "Spectral Feature" ; rdfs:subClassOf af:AudioFeature . af:ModifiedKullbackLieblerOnsetDetectionFunction a owl:Class ; @@ -3009,6 +3395,22 @@ af:source "Queen Mary, University of London" ; rdfs:subClassOf af:AudioFeature . +af:OddToEvenHarmonicRatio a owl:Class ; + af:Dimensions "3" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Odd to Even Harmonic Ratio" ; + af:similarTo af:Oddtoevenharmonicratio ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:Oddtoevenharmonicratio a owl:Class ; + af:computedIn "TimbreToolbox" ; + af:feature "Odd to even harmonic ratio" ; + af:signal "Harmonic" ; + af:similarTo af:OddToEvenHarmonicRatio ; + rdfs:subClassOf af:AudioFeature . + af:PeakSpectrum a owl:Class ; dc:description "Extract the spectral peaks from an audio spectrum" ; af:computedIn "Vamp", @@ -3020,6 +3422,24 @@ af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; rdfs:subClassOf af:AudioFeature . +af:PerceptualSpectralKurtosis a owl:Class ; + af:Dimensions "6" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Perceptual Spectral kurtosis" ; + af:similarTo af:PerceptualSpectralCentroid ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:PerceptualSpectralRolloff a owl:Class ; + af:Dimensions "1" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Perceptual Spectral Rolloff" ; + af:similarTo af:PerceptualSpectralSlope ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + af:RhythmPattern a owl:Class ; af:author "T. Lidy" ; af:computedIn "MIREX" ; @@ -3038,6 +3458,7 @@ "Low-pass Filter", "Regression", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "80" ; af:domain "modulation frequency" ; af:feature "RhythmPatterns" ; @@ -3074,6 +3495,8 @@ "Extract the spectral flatness of an audio spectrum", "Marsyas - Batch Feature Extract - Spectral Flatness Measure", "a power spectrum's geometric mean divided by its arithmetic mean" ; + af:Dimensions "4" ; + af:FrameBased "y" ; af:appdomain "fingerprinting" ; af:complexity "medium" ; af:computation "Discrete Fourier Transform", @@ -3083,22 +3506,29 @@ "Windowing" ; af:computedIn "CLAM", "SuperCollider", + "TimbreToolbox", "Vamp", "Yaafe", + "cuidado", "libXtract" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency", "time" ; af:feature "Marsyas - Batch Feature Extract - Spectral Flatness Measure", "Spectral Flatness", + "Spectral flatness", "SpectralFlatness" ; af:level "perceptual" ; af:output "Dense" ; + af:signal "Auditory model", + "Short-term Fourier Transform" ; af:similarTo af:SpectralSharpness ; af:source "Marsyas Plugins", "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; af:tag "Spectral" ; af:temporalscale "intraframe" ; + af:typeOfFeature "Various Feature" ; rdfs:subClassOf af:AudioFeature . af:SpectralFlatnessAllBands a owl:Class ; @@ -3126,6 +3556,15 @@ af:similarTo af:SpectralPattern ; rdfs:subClassOf af:AudioFeature . +af:SpectralShape a owl:Class ; + af:Dimensions "y" ; + af:FrameBased "Spectral centroid" ; + af:computedIn "cuidado" ; + af:feature "Spectral Shape" ; + af:similarTo af:SpectralSlope ; + af:typeOfFeature "Spectral Feature" ; + rdfs:subClassOf af:AudioFeature . + af:SpectralShapeStatistics a owl:Class ; dc:description "Compute shape statistics of :class:MagnitudeSpectrum, (see [GR2004]_)." ; af:computedIn "Yaafe" ; @@ -3136,15 +3575,63 @@ dc:description "Extract the skewness of a range of values", "Extract the skewness of an audio spectrum", "The skewness is computed from the third order moment of the spectrum. A negative skewness indicates more energy on the lower part of the spectrum. A positive skewness indicates more energy on the high frequency of the spectrum." ; - af:computedIn "Vamp", + af:Dimensions "6" ; + af:FrameBased "y" ; + af:computedIn "TimbreToolbox", + "Vamp", "aubio", + "cuidado", "libXtract" ; af:domain "frequency" ; af:feature "Skewness", - "Spectral Skewness" ; + "Spectral Skewness", + "Spectral skewness" ; af:output "Dense" ; + af:signal "Auditory model", + "Harmonic", + "Short-term Fourier Transform" ; af:similarTo af:SpectralSharpness ; af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; + af:typeOfFeature "Spectral Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:SpectralSlope a owl:Class ; + dc:description "Extract the spectral slope of an audio spectrum", + "SpectralSlope is computed by linear regression of the spectral amplitude. (see [GP2004]_)", + "The spectral slope represents decreasing rate of the spectral amplitude, computed using a linear regression.", + "measures the spectral slope, which is the slope of the linear correlation line derived from the spectral magnitudes", + "the amount of decreasing of the spectral magnitude" ; + af:Dimensions "6" ; + af:FrameBased "y" ; + af:appdomain "several" ; + af:complexity "low" ; + af:computation "Discrete Fourier Transform", + "Peak Detection", + "Windowing" ; + af:computedIn "CLAM", + "SuperCollider", + "TimbreToolbox", + "Vamp", + "Yaafe", + "aubio", + "cuidado", + "libXtract" ; + af:dimensionality "multi-dimensional" ; + af:dimensions "4" ; + af:domain "frequency" ; + af:feature "Spectral Slope", + "Spectral slope", + "SpectralSlope" ; + af:level "physical" ; + af:output "Dense" ; + af:signal "Auditory model", + "Harmonic", + "Short-term Fourier Transform" ; + af:similarTo af:SpectralShape ; + af:source "libxtract by Jamie Bullock (plugin by Chris Cannam)" ; + af:tag "Spectral" ; + af:temporalscale "intraframe" ; + af:typeOfFeature "Spectral Feature" ; rdfs:subClassOf af:AudioFeature . af:SpectralStandardDeviation a owl:Class ; @@ -3159,8 +3646,13 @@ af:SpectralVariation a owl:Class ; dc:description "SpectralVariation is the normalized correlation of :class:spectrum MagnitudeSpectrum between consecutive frames. (see [GP2004]_)" ; - af:computedIn "Yaafe" ; + af:Dimensions "3" ; + af:FrameBased "y" ; + af:computedIn "Yaafe", + "cuidado" ; + af:feature "Spectral variation" ; af:similarTo af:SpectralVariance ; + af:typeOfFeature "Spectral Feature" ; rdfs:subClassOf af:AudioFeature . af:Spectralaveragedeviation a owl:Class ; @@ -3213,6 +3705,24 @@ af:similarTo af:StereoSpectrumFeatures ; rdfs:subClassOf af:AudioFeature . +af:TemporalDecrease a owl:Class ; + af:Dimensions "1" ; + af:FrameBased "n" ; + af:computedIn "cuidado" ; + af:feature "Temporal Decrease" ; + af:similarTo af:TemporalIncrease ; + af:typeOfFeature "GlobalTemporalFeature" ; + rdfs:subClassOf af:AudioFeature . + +af:TemporalIncrease a owl:Class ; + af:Dimensions "1" ; + af:FrameBased "n" ; + af:computedIn "cuidado" ; + af:feature "Temporal Increase" ; + af:similarTo af:TemporalDecrease ; + af:typeOfFeature "GlobalTemporalFeature" ; + rdfs:subClassOf af:AudioFeature . + af:TemporalShapeStatistics a owl:Class ; dc:description "Compute :ref:shape statistics shapestatistics of signal frames." ; af:computedIn "Yaafe" ; @@ -3256,6 +3766,7 @@ "Low-pass Filter", "Windowing" ; af:computedIn "MIRToolbox" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "modulation frequency" ; af:feature "BeatSpectrum" ; @@ -3289,6 +3800,7 @@ "Low-pass Filter", "Root Mean Square", "Windowing" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "modulation frequency" ; af:feature "BeatTracker" ; @@ -3319,57 +3831,54 @@ af:source "MIREX" ; rdfs:subClassOf af:AudioFeature . -af:MPEG7HarmonicSpectralDeviation a owl:Class ; - af:appdomain "music information retrieval" ; - af:complexity "medium" ; - af:computation "Discrete Fourier Transform", - "Logarithm", - "Mean", - "Median", - "Windowing", - "Zero-/Level Crossing Detector" ; - af:computedIn "MPEG-7" ; - af:dimensions "1" ; - af:domain "frequency" ; - af:feature "MPEG7HarmonicSpectralDeviation" ; - af:level "perceptual" ; - af:similarTo af:MPEG7HarmonicSpectralCentroid, +af:HarmonicSpectralDeviation a owl:Class ; + af:Dimensions "3" ; + af:FrameBased "y" ; + af:computedIn "TimbreToolbox", + "cuidado" ; + af:feature "Harmonic Spectral Deviation" ; + af:signal "Harmonic" ; + af:similarTo af:HarmonicSpectralVariation, + af:MPEG7HarmonicSpectralDeviation ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:HarmonicSpectralFlux a owl:Class ; + dc:description "Cacluate the correlation bettween adjacent frames based peaks instead of spectral bins. Peak tracking is primitive - whe the number of bins changes, the bottom bins are matched sequentially and the extra unmatched bins are ignored.) definition = new FeatureDefinition(name, description, true, 1) dependencies = new String[] { Peak Detection, Peak Detection } offsets = new int[] { 0, -1 } } /** * Extract the peak based spectral flux from the window. * @param samples * The samples to extract the feature from. * @param sampling_rate * The sampling rate that the samples are encoded with. * @param other_feature_values * The values of other features that are needed to calculate this * value. The order and offsets of these features must be the * same as those returned by this class's getDependencies and * getDependencyOffsets methods respectively. The first indice * indicates the feature/window and the second indicates the * value. * @return The extracted feature value(s). * @throws Exception * Throws an informative exception if the feature cannot be * calculated. * @see jAudioFeatureExtractor.AudioFeatures.FeatureExtractor#extractFeature(double[], * double, double[][]) */ public double[] extractFeature(double[] samples, double sampling_rate, double[][] other_feature_values) { double[] result = new double[1] double[] old = other_feature_values[1] double[] now = other_feature_values[0] double x, y, xy, x2, y2 x = y = xy = x2 = y2 = 0.0 int peakCount = Math.min(old.length, now.length) for (int i = 0 i < peakCount i) { x = old[i] y = now[i] xy = old[i] * now[i] x2 = old[i] * old[i] y2 = now[i] * now[i] } double top = xy - (x * y) / peakCount double bottom = Math.sqrt(Math.abs((x2 - ((x * x) / peakCount)) * (y2 - ((y * y) / peakCount)))) result[0] = top / bottom return result } /** * Proviede a complete copy of this feature. Used to implement the prottype * pattern */ public Object clone() { return new HarmonicSpectralFlux() } }" ; + af:computedIn "jMIR" ; + af:name "Partial Based Spectral Flux" ; + af:similarTo af:HarmonicSpectralShape, + af:HarmonicSpectralSlope ; + rdfs:subClassOf af:AudioFeature . + +af:HarmonicSpectralVariation a owl:Class ; + af:Dimensions "3" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Harmonic Spectral variation" ; + af:similarTo af:HarmonicSpectralDeviation, af:MPEG7HarmonicSpectralVariation ; - af:temporalscale "intraframe" ; - rdfs:subClassOf af:AudioFeature . - -af:MPEG7HarmonicSpectralSpread a owl:Class ; - af:appdomain "music information retrieval" ; - af:complexity "medium" ; - af:computation "Discrete Fourier Transform", - "Median", - "Windowing", - "Zero-/Level Crossing Detector" ; - af:computedIn "MPEG-7" ; - af:dimensions "1" ; - af:domain "frequency" ; - af:feature "MPEG7HarmonicSpectralSpread" ; - af:level "perceptual" ; - af:similarTo af:MPEG7HarmonicSpectralCentroid, - af:MPEG7HarmonicSpectralVariation ; - af:temporalscale "intraframe" ; - rdfs:subClassOf af:AudioFeature . - -af:MPEG7HarmonicSpectralVariation a owl:Class ; - af:appdomain "music information retrieval" ; - af:complexity "medium" ; - af:computation "Cross-Correlation", - "Discrete Fourier Transform", - "Windowing", - "Zero-/Level Crossing Detector" ; - af:computedIn "MPEG-7" ; - af:dimensions "1" ; - af:domain "frequency" ; - af:feature "MPEG7HarmonicSpectralVariation" ; - af:level "perceptual" ; - af:similarTo af:MPEG7HarmonicSpectralDeviation, - af:MPEG7HarmonicSpectralSpread ; - af:temporalscale "intraframe" ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:PerceptualSpectralCentroid a owl:Class ; + af:Dimensions "6" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Perceptual Spectral centroid" ; + af:similarTo af:PerceptualSpectralKurtosis, + af:PerceptualSpectralSpread ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:PerceptualSpectralDecrease a owl:Class ; + af:Dimensions "1" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Perceptual Spectral Decrease" ; + af:similarTo af:PerceptualSpectralSkewness, + af:PerceptualSpectralSpread ; + af:typeOfFeature "Perceptual Feature" ; rdfs:subClassOf af:AudioFeature . af:SpectralMean a owl:Class ; @@ -3387,6 +3896,7 @@ "Discrete Fourier Transform", "Sum, Weighted Sum", "Windowing" ; + af:dimensionality "multi-dimensional" ; af:dimensions "parameterized" ; af:domain "frequency" ; af:feature "SpectralPeaks" ; @@ -3424,14 +3934,26 @@ af:SpectralPeaks ; rdfs:subClassOf af:AudioFeature . +af:HarmonicSpectralShape a owl:Class ; + af:Dimensions "y" ; + af:FrameBased "Harmonic Spectral centroid" ; + af:computedIn "cuidado" ; + af:feature "Harmonic Spectral Shape" ; + af:similarTo af:HarmonicSpectralFlux, + af:HarmonicSpectralSlope, + af:HarmonicSpectralSpread ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + af:MPEG7HarmonicSpectralCentroid a owl:Class ; af:appdomain "music information retrieval" ; af:complexity "medium" ; af:computation "Discrete Fourier Transform", + "Level Crossing Detector", "Mean", - "Windowing", - "Zero-/Level Crossing Detector" ; + "Windowing" ; af:computedIn "MPEG-7" ; + af:dimensionality "one-dimensional" ; af:dimensions "1" ; af:domain "frequency" ; af:feature "MPEG7HarmonicSpectralCentroid" ; @@ -3442,6 +3964,111 @@ af:temporalscale "intraframe" ; rdfs:subClassOf af:AudioFeature . +af:MPEG7HarmonicSpectralDeviation a owl:Class ; + af:appdomain "music information retrieval" ; + af:complexity "medium" ; + af:computation "Discrete Fourier Transform", + "Level Crossing Detector", + "Logarithm", + "Mean", + "Median", + "Windowing" ; + af:computedIn "MPEG-7" ; + af:dimensionality "one-dimensional" ; + af:dimensions "1" ; + af:domain "frequency" ; + af:feature "MPEG7HarmonicSpectralDeviation" ; + af:level "perceptual" ; + af:similarTo af:HarmonicSpectralDeviation, + af:MPEG7HarmonicSpectralCentroid, + af:MPEG7HarmonicSpectralVariation ; + af:temporalscale "intraframe" ; + rdfs:subClassOf af:AudioFeature . + +af:MPEG7HarmonicSpectralSpread a owl:Class ; + af:appdomain "music information retrieval" ; + af:complexity "medium" ; + af:computation "Discrete Fourier Transform", + "Level Crossing Detector", + "Median", + "Windowing" ; + af:computedIn "MPEG-7" ; + af:dimensionality "one-dimensional" ; + af:dimensions "1" ; + af:domain "frequency" ; + af:feature "MPEG7HarmonicSpectralSpread" ; + af:level "perceptual" ; + af:similarTo af:HarmonicSpectralSpread, + af:MPEG7HarmonicSpectralCentroid, + af:MPEG7HarmonicSpectralVariation ; + af:temporalscale "intraframe" ; + rdfs:subClassOf af:AudioFeature . + +af:MPEG7HarmonicSpectralVariation a owl:Class ; + af:appdomain "music information retrieval" ; + af:complexity "medium" ; + af:computation "Cross-Correlation", + "Discrete Fourier Transform", + "Level Crossing Detector", + "Windowing" ; + af:computedIn "MPEG-7" ; + af:dimensionality "one-dimensional" ; + af:dimensions "1" ; + af:domain "frequency" ; + af:feature "MPEG7HarmonicSpectralVariation" ; + af:level "perceptual" ; + af:similarTo af:HarmonicSpectralVariation, + af:MPEG7HarmonicSpectralDeviation, + af:MPEG7HarmonicSpectralSpread ; + af:temporalscale "intraframe" ; + rdfs:subClassOf af:AudioFeature . + +af:PerceptualSpectralSkewness a owl:Class ; + af:Dimensions "6" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Perceptual Spectral skewness" ; + af:similarTo af:PerceptualSpectralDecrease, + af:PerceptualSpectralSlope, + af:PerceptualSpectralSpread ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:PerceptualSpectralSlope a owl:Class ; + af:Dimensions "6" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Perceptual Spectral Slope" ; + af:similarTo af:PerceptualSpectralRolloff, + af:PerceptualSpectralSkewness, + af:PerceptualSpectralSpread ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:HarmonicSpectralSlope a owl:Class ; + af:Dimensions "6" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Harmonic Spectral slope" ; + af:similarTo af:HarmonicSpectralFlux, + af:HarmonicSpectralRolloff, + af:HarmonicSpectralShape, + af:HarmonicSpectralSpread ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:HarmonicSpectralSpread a owl:Class ; + af:Dimensions "6" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Harmonic Spectral spread" ; + af:similarTo af:HarmonicSpectralDecrease, + af:HarmonicSpectralShape, + af:HarmonicSpectralSlope, + af:MPEG7HarmonicSpectralSpread ; + af:typeOfFeature "Harmonic Feature" ; + rdfs:subClassOf af:AudioFeature . + af:Irregularity a owl:Class ; dc:description "The degree of variation of the successive peaks of the spectrum" ; af:computedIn "MIRToolbox" ; @@ -3494,27 +4121,54 @@ af:Irregularityj ; rdfs:subClassOf af:AudioFeature . -af:Tristimulus1 a owl:Class ; - af:computedIn "libXtract" ; - af:similarTo af:Tristimulus2, +af:PerceptualSpectralSpread a owl:Class ; + af:Dimensions "6" ; + af:FrameBased "y" ; + af:computedIn "cuidado" ; + af:feature "Perceptual Spectral spread" ; + af:similarTo af:PerceptualSpectralCentroid, + af:PerceptualSpectralDecrease, + af:PerceptualSpectralSkewness, + af:PerceptualSpectralSlope ; + af:typeOfFeature "Perceptual Feature" ; + rdfs:subClassOf af:AudioFeature . + +af:Tristimulus a owl:Class ; + af:computedIn "TimbreToolbox" ; + af:feature "Tristimulus" ; + af:signal "Harmonic" ; + af:similarTo af:Tristimulus1, + af:Tristimulus2, af:Tristimulus3, af:TristimulusI, af:TristimulusII, af:TristimulusIII ; rdfs:subClassOf af:AudioFeature . -af:Tristimulus2 a owl:Class ; +af:Tristimulus1 a owl:Class ; af:computedIn "libXtract" ; - af:similarTo af:Tristimulus1, + af:similarTo af:Tristimulus, + af:Tristimulus2, af:Tristimulus3, af:TristimulusI, af:TristimulusII, af:TristimulusIII ; rdfs:subClassOf af:AudioFeature . +af:Tristimulus2 a owl:Class ; + af:computedIn "libXtract" ; + af:similarTo af:Tristimulus, + af:Tristimulus1, + af:Tristimulus3, + af:TristimulusI, + af:TristimulusII, + af:TristimulusIII ; + rdfs:subClassOf af:AudioFeature . + af:Tristimulus3 a owl:Class ; af:computedIn "libXtract" ; - af:similarTo af:Tristimulus1, + af:similarTo af:Tristimulus, + af:Tristimulus1, af:Tristimulus2, af:TristimulusI, af:TristimulusII, @@ -3527,7 +4181,8 @@ af:domain "frequency" ; af:feature "Tristimulus I" ; af:output "Dense" ; - af:similarTo af:Tristimulus1, + af:similarTo af:Tristimulus, + af:Tristimulus1, af:Tristimulus2, af:Tristimulus3, af:TristimulusII, @@ -3541,7 +4196,8 @@ af:domain "frequency" ; af:feature "Tristimulus II" ; af:output "Dense" ; - af:similarTo af:Tristimulus1, + af:similarTo af:Tristimulus, + af:Tristimulus1, af:Tristimulus2, af:Tristimulus3, af:TristimulusI, @@ -3555,7 +4211,8 @@ af:domain "frequency" ; af:feature "Tristimulus III" ; af:output "Dense" ; - af:similarTo af:Tristimulus1, + af:similarTo af:Tristimulus, + af:Tristimulus1, af:Tristimulus2, af:Tristimulus3, af:TristimulusI,
--- a/af-catalogue.rdf Mon Apr 01 21:26:45 2013 +0100 +++ b/af-catalogue.rdf Tue Apr 02 15:33:18 2013 +0100 @@ -5,3955 +5,4660 @@ xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" > - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectrum2Mel"> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualLinearPrediction"> + <af:computation>Discrete Cosine Transform</af:computation> + <af:computation>Cepstral Recursion Formula</af:computation> + <af:computation>(Non-) Linear Weighting Function</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Autoregression (Linear Prediction Analysis)</af:computation> + <af:model>psychoacoustic</af:model> + <af:domain>cepstral</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>speech recognition</af:appdomain> + <af:complexity>high</af:complexity> + <af:feature>PerceptualLinearPrediction</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>physical</af:level> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:dimensions>parameterized</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTracker"> + <af:computation>Windowing</af:computation> + <af:computation>Derivation, Difference</af:computation> + <af:computation>Band-pass Filter (Bank)</af:computation> + <af:computation>Comb Filter (Bank)</af:computation> + <af:computation>Root Mean Square</af:computation> + <af:computation>Low-pass Filter</af:computation> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTrack"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTrack2"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>modulation frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:complexity>high</af:complexity> + <af:feature>BeatTracker</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:dimensions>1</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatHistogram"> + <af:computation>Autocorrelation</af:computation> + <af:computation>Discrete Wavelet Transform</af:computation> + <af:computation>Spectral binning</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Root Mean Square</af:computation> + <af:computation>Low-pass Filter</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>modulation frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:computedIn>jMIR</af:computedIn> <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Convert spectrum magnitude (e.g. output from PowerSpectrum MarSystem)into Mel frequency scale.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RhythmHistogram"> - <af:feature>Rhythm Histogram</af:feature> - <af:author>T. Lidy</af:author> - <af:source>MIREX 2008</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ConstantQSpectrogram"> - <af:feature>Constant-Q Spectrogram</af:feature> - <dc:description>Extract a spectrogram with constant ratio of centre frequency to resolution from the input audio</dc:description> + <af:complexity>medium</af:complexity> + <af:name>Beat Histogram</af:name> + <af:feature>BeatHistogram</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:dimensions>6</af:dimensions> + <dc:description>A histogram showing the relative strength of different rhythmic periodicities (tempi) in a signal. Found by calculating the auto-correlation of the RMS.</dc:description> + <dc:description>BeatHistogram</dc:description> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Sone"> + <af:computation>(Non-) Linear Weighting Function</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Logarithm</af:computation> + <af:computation>Low-pass Filter</af:computation> + <af:model>psychoacoustic</af:model> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:complexity>high</af:complexity> + <af:feature>Sone</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>perceptual</af:level> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:dimensions>parameterized</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ModifiedKullbackLieblerOnsetDetectionFunction"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Modified Kullback-Liebler onset detection function.</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KullbackLieblerOnsetDetectionFunction"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KullbackLieblerOnsetDetectionFunction"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Kullback-Liebler onset detection function.</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ModifiedKullbackLieblerOnsetDetectionFunction"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaMoments"> + <af:name>Area Method of Moments</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>2D statistical method of moments</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchContours:Melody"> + <af:source>Music Technology Group, Universitat Pompeu Fabra</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Pitch Contours: Melody (MELODIA - Melody Extraction (intermediate steps))</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Failsafef0"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralDeviation"> + <af:computation>Level Crossing Detector</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Mean</af:computation> + <af:computation>Median</af:computation> + <af:computation>Logarithm</af:computation> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralVariation"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralCentroid"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralDeviation"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:computedIn>MPEG-7</af:computedIn> + <af:complexity>medium</af:complexity> + <af:feature>MPEG7HarmonicSpectralDeviation</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>perceptual</af:level> + <af:dimensions>1</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TriangularFilterBank"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Triangular FilterBankTakes as input the N/2+1 spectrum Magnitude points output by PowerSpectrum.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MaxMagFreq"> + <af:computedIn>CLAM</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Spectral</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>frequency of the maximum magnitude of the spectrum</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MelscaleFrequencyCepstralCoefficients"> <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LogarithmicFluctuationPattern"> - <af:feature>Logarithmic Fluctuation Pattern</af:feature> - <af:author>Klaus Seyerlehner</af:author> - <af:source>MIREX 2012</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ShortTimeEnergy"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>ShortTimeEnergy</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>temporal</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Windowing</af:computation> - <af:computation>Deviation, Sum of Differences</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ZeroCrossingRate"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>Marsyas - Batch Feature Extract - Zero Crossings</af:feature> - <af:feature>Zero Crossings</af:feature> - <af:feature>ZeroCrossingRate</af:feature> - <af:feature>Zero Crossing Rate</af:feature> - <dc:description>Compute zero-crossing rate in frames. see [SS1997]_.</dc:description> - <dc:description>a measure of the number of time the signal value cross the zero axe, averaged over the whole signal</dc:description> - <dc:description>Detect and count zero crossing points</dc:description> - <dc:description>Extract the zero crossing rate of an audio signal</dc:description> - <dc:description>Outputs a frequency based upon the distance between interceptions of the X axis. The X intercepts are determined via linear interpolation so this gives better than just integer wavelength resolution. This is a very crude pitch follower, but can be useful in some situations.</dc:description> - <dc:description>The number of times the waveform changed sign. An indication of frequency as well as noisiness.</dc:description> - <dc:description>Marsyas - Batch Feature Extract - Zero Crossings</dc:description> - <dc:description>Time-domain ZeroCrossings</dc:description> <af:source>Marsyas Plugins</af:source> <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:domain>time</af:domain> + <af:domain>frequency</af:domain> + <af:domain>cepstral</af:domain> <af:appdomain>several</af:appdomain> - <af:domain>temporal</af:domain> - <af:domain>time</af:domain> - <af:tag>Timbre</af:tag> - <af:tag>Audio</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:name>Zero Crossings</af:name> + <af:computedIn>SuperCollider</af:computedIn> <af:computedIn>CLAM</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> + <af:computedIn>aubio</af:computedIn> + <af:computedIn>Vamp</af:computedIn> + <af:computedIn>libXtract</af:computedIn> <af:computedIn>MIRToolbox</af:computedIn> <af:computedIn>Yaafe</af:computedIn> + <af:computedIn>comirva</af:computedIn> <af:computedIn>jMIR</af:computedIn> + <af:computedIn>Marsyas</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:level>physical</af:level> + <af:tag>Timbre</af:tag> + <af:tag>Spectral</af:tag> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BarkscaleFrequencyCepstralCoefficients"/> + <af:output>Dense</af:output> + <af:abbreviation>MFCC</af:abbreviation> + <af:complexity>high</af:complexity> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <af:typeOfFeature>Spectral Feature</af:typeOfFeature> + <af:model>psychoacoustic</af:model> + <af:feature>Coefficients (Mel-Frequency Cepstral Coefficients)</af:feature> + <af:feature>MFCC</af:feature> + <af:feature>Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients</af:feature> + <af:feature>Mel-Frequency Cepstral Coefficients</af:feature> + <af:feature>MelscaleFrequencyCepstralCoefficients</af:feature> + <af:name>MFCC</af:name> + <dc:description>MFCC calculations based upon Orange Cow code</dc:description> + <dc:description>Mel-frequency cepstrum coefficients object</dc:description> + <dc:description>Compute the Mel-frequencies cepstrum coefficients [DM1980]_.</dc:description> + <dc:description>Generates a set of MFCCs; these are obtained from a band-based frequency representation (using the Mel scale by default), and then a discrete cosine transform (DCT). The DCT is an efficient approximation for principal components analysis, so that it allows a compression, or reduction of dimensionality, of the data, in this case reducing 42 band readings to a smaller set of MFCCs. A small number of features (the coefficients) end up describing the spectrum. The MFCCs are commonly used as timbral descriptors.</dc:description> + <dc:description>Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients</dc:description> + <dc:description>Calculate a series of MFCC vectors from the audio</dc:description> + <dc:description>MFCC Mel-Frequency Cepstral Coefficients.Takes as input the N/2+1 spectrum Magnitude points output by PowerSpectrum.</dc:description> + <dc:description>Extract MFCC from an audio spectrum</dc:description> + <af:FrameBased>y</af:FrameBased> + <af:computation>Regression</af:computation> + <af:computation>Discrete Cosine Transform</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Logarithm</af:computation> + <af:computation>Windowing</af:computation> + <af:Dimensions>12</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Sum"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DeltaMfcc"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>12</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Delta MFCC</af:feature> + <af:typeOfFeature>Spectral Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralSpread"> + <af:computation>Level Crossing Detector</af:computation> + <af:computation>Median</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Windowing</af:computation> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSpread"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralVariation"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralCentroid"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:computedIn>MPEG-7</af:computedIn> + <af:complexity>medium</af:complexity> + <af:feature>MPEG7HarmonicSpectralSpread</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>perceptual</af:level> + <af:dimensions>1</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusII"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusIII"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus3"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusI"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus2"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus1"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus"/> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + 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rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusIII"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusII"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus3"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusI"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus1"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BarkscaleFrequencyCepstralCoefficients"> + <af:computation>Regression</af:computation> + <af:computation>Discrete Cosine Transform</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Logarithm</af:computation> + <af:computation>Windowing</af:computation> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MelscaleFrequencyCepstralCoefficients"/> + <af:model>psychoacoustic</af:model> + <af:domain>cepstral</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>several</af:appdomain> + <af:complexity>high</af:complexity> + <af:feature>BarkscaleFrequencyCepstralCoefficients</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>physical</af:level> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:dimensions>parameterized</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PeakerOnset"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Detects if input contains a onset point</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectrotemporalVariation"> + <af:feature>Spectro-temporal Variation</af:feature> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:signal>Harmonic</af:signal> + <af:signal>Auditory model</af:signal> + <af:signal>Short-term Fourier Transform</af:signal> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Yin"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Pitch detection using the YIN algorithm</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RatescalefrequencyFeatures"> + <af:computation>Band-pass Filter Bank</af:computation> + <af:computation>(Non-) Linear Weighting Function</af:computation> + <af:computation>Discrete Wavelet Transform</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Derivation, Difference</af:computation> + <af:computation>Principal Component Analysis</af:computation> + <af:computation>Root Mean Square</af:computation> + <af:computation>Low-pass Filter</af:computation> + <af:model>psychoacoustic</af:model> + <af:domain>eigendomain</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>environmental sound recognition</af:appdomain> + <af:complexity>high</af:complexity> + <af:feature>RatescalefrequencyFeatures</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:level>physical</af:level> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:dimensions>256</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Asdf"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PulseClarity"> + <af:computedIn>MIRToolbox</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Rhythm</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>estimates the rhythmic clarity, indicating the strength of the beats estimated by the tempo function</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TunedLogFrequencySpectrum"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LogFrequencySpectrum"/> + <af:source>Matthias Mauch</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Tuned Log-Frequency Spectrum (NNLS Chroma)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSlope"> + <af:FrameBased>y</af:FrameBased> + <af:computation>Windowing</af:computation> + <af:computation>Peak Detection</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + 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(see [GP2004]_)</dc:description> + <dc:description>the amount of decreasing of the spectral magnitude</dc:description> + <dc:description>Extract the spectral slope of an audio spectrum</dc:description> + <dc:description>The spectral slope represents decreasing rate of the spectral amplitude, computed using a linear regression.</dc:description> + <af:level>physical</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PeakPicker"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Peak picking utilities function</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityI"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityk"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularity"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityj"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityII"/> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Irregularity I</af:feature> + <dc:description>Extract the irregularity (type I) of an audio spectrum</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FilterbankMel"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Mel frequency filter bank coefficients. Set filter bank coefficients to Mel frequency bands</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonalDissonance"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>PsySound3</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPatternCent"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>comirva</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPattern"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchFftYin"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Pitch detection using a spectral implementation of the YIN algorithm</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PowerToAverageRatio"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>PowerToAverageRatio (or Power-to-Average Ratio) of a window</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectrum"> + <af:computation>Autocorrelation</af:computation> + <af:computation>Cross-Correlation</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Logarithm</af:computation> + <af:computation>Low-pass Filter</af:computation> + <af:tag>Rhythm</af:tag> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectra"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PeakSpectrum"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>modulation frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:computedIn>MIRToolbox</af:computedIn> + <af:complexity>high</af:complexity> + <af:feature>BeatSpectrum</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <dc:description>a measure of acoustic self-similarity as a function of time lag, computed from the similarity matrix</dc:description> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Loudness"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>1</af:Dimensions> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> <af:computedIn>SuperCollider</af:computedIn> <af:computedIn>Vamp</af:computedIn> <af:computedIn>libXtract</af:computedIn> - <af:computedIn>sMIRk</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:abbreviation>ZCR</af:abbreviation> - <af:output>Dense</af:output> - <af:computation>Spectral binning</af:computation> + <af:computedIn>Yaafe</af:computedIn> + <af:computedIn>PsySound3</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <dc:description>A perceptual loudness function which outputs loudness in sones; this is a variant of an MP3 perceptual model, summing excitation in ERB bands. It models simple spectral and temporal masking, with equal loudness contour correction in ERB bands to obtain phons (relative dB), then a phon to sone transform. The final output is typically in the range of 0 to 64 sones, though higher values can occur with specific synthesised stimuli.</dc:description> + <dc:description>Extract the loudness of an audio signal from its spectrum</dc:description> + <dc:description>The loudness coefficients are the energy in each Bark band, normalized by the overall sum. see [GP2004]_ and [MG1997]_ for more details.</dc:description> + <af:feature>Loudness</af:feature> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BandPeriodicity"> + <af:computation>Autocorrelation</af:computation> <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlux"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>SpectralFlux</af:feature> - <dc:description>Compute flux of :class:spectrum MagnitudeSpectrum between consecutives frames.</dc:description> - <dc:description>Spectral Flux</dc:description> - <dc:description>A measure of the amount of spectral change in a signal. //\n Found by calculating the change in the magnitude spectrum //\n from frame to frame.</dc:description> - <dc:description>Flux calculate the flux between the current and prev. spectrum (e.g. output of PowerSpectrum)</dc:description> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:name>Spectral Flux</af:name> - <af:computedIn>aubio</af:computedIn> + <af:computation>Sum, Weighted Sum</af:computation> + <af:computation>Root Mean Square</af:computation> + <af:computation>Band-pass Filter (Bank)</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>modulation frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>audio segmentation</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>BandPeriodicity</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:dimensions>4</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSmoothness"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSkewness"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>jMIR</af:computedIn> + <af:name>Peak Based Spectral Smoothness</af:name> + <dc:description>Peak Based Spectral Smoothness is calculated from partials, not frequency bins. It is implemented accortding to McAdams 99 System.getProperty(line.separator) System.getProperty(line.separator) McAdams, S. 1999.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimGammatone"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Slaney's gammatone filterbank</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/EnvelopeShapeStatistics"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>Yaafe</af:computedIn> - <af:computedIn>jMIR</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:computedIn>sMIRk</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:abbreviation>SF</af:abbreviation> - <af:computation>Derivation, Difference</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFluxOnsetDetectionFunction"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Rhythm</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Use peaks of spectral flux to detect onsets</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/F0"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralSpread"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>MPEG7HarmonicSpectralSpread</af:feature> - <af:level>perceptual</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralCentroid"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralVariation"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:computation>Median</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Zero-/Level Crossing Detector</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7TemporalCentroid"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>MPEG7TemporalCentroid</af:feature> - <af:level>physical</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7SpectralCentroid"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>temporal</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:computation>Mean</af:computation> - <af:computation>Power</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AutoCorrelationPeaksIntegrator"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Feature transform that compute peaks of the autocorrelation function, outputs peaks and amplitude.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualLinearPrediction"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>PerceptualLinearPrediction</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>speech recognition</af:appdomain> - <af:domain>cepstral</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Centroid, spread, skewness and kurtosis of each frame's amplitude envelope. For more details about moments, see :ref:Shape Statistics shapestatistics.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioSpectrumCentroid"> <af:computation>Regression</af:computation> - <af:computation>(Non-) Linear Weighting Function</af:computation> - <af:computation>Cepstral Recursion Formula</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Discrete Cosine Transform</af:computation> - <af:computation>Autoregression (Linear Prediction Analysis)</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ConstantQMFCC"> - <af:name>ConstantQ derived MFCCs</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>MFCCs directly caluclated from ConstantQ exponential bins</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSum"> - <af:name>Beat Sum</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The sum of all entries in the beat histogram. This is a good measure of the importance of regular beats in a signal.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Rmsamplitude"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpread"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute the spread of :class:Loudness coefficients, according to [GP2004]_.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MELODIAMelodyExtraction(intermediatesteps)"> - <af:feature>MELODIA - Melody Extraction (intermediate steps)</af:feature> - <dc:description>Provides visualisations of the intermediate steps calculated by the melody extraction algorithm implemented in the MELODIA - Melody Extraction plug-in. For further details please read: J. Salamon and E. Gomez, "Melody Extraction from Polyphonic Music Signals using Pitch Contour Characteristics", IEEE Transactions on Audio, Speech and Language Processing, 20(6):1759-1770, 2012. We would highly appreciate the above reference being cited in publications of work in which this plug-in was used.</dc:description> - <af:source>Music Technology Group, Universitat Pompeu Fabra</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPattern"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatterns"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatternCent"/> - <af:computedIn>comirva</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LinearSpectralPairs"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LineSpectralPairs"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute Linear Spectral Pair (LSP) coefficientsTakes the output of ::LPC() and calculates the corresponding LSP values.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RunningStatistics"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Gathers the running average, variance, standard deviation, etc.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Signal"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlatnessAllBands"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlatnessPerBand"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Calculates a single spectral flatness value.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralDeviation"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>MPEG7HarmonicSpectralDeviation</af:feature> - <af:level>perceptual</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralCentroid"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralVariation"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:computation>Median</af:computation> - <af:computation>Mean</af:computation> <af:computation>Windowing</af:computation> <af:computation>Discrete Fourier Transform</af:computation> <af:computation>Logarithm</af:computation> - <af:computation>Zero-/Level Crossing Detector</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ChromagramandBassChromagram"> - <af:feature>Chromagram and Bass Chromagram (NNLS Chroma)</af:feature> - <af:source>Matthias Mauch</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computation>Mean</af:computation> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioSpectrumSpread"/> + <af:model>psychoacoustic</af:model> <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatternCent"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatterns"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPattern"/> - <af:computedIn>comirva</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PulseMetric"> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>several</af:appdomain> + <af:computedIn>MPEG-7</af:computedIn> + <af:complexity>medium</af:complexity> + <af:feature>MPEG7AudioSpectrumCentroid</af:feature> <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>PulseMetric</af:feature> <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>audio segmentation</af:appdomain> - <af:domain>modulation frequency</af:domain> <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:dimensions>1</af:dimensions> - <af:computation>Autocorrelation</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonalDissonance"> - <af:computedIn>PsySound3</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DeltaSpectralPattern"> - <af:feature>Delta Spectral Pattern</af:feature> - <af:author>Klaus Seyerlehner</af:author> - <af:source>MIREX 2012</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/VarianceDeltaSpectralPattern"> - <af:feature>Variance Delta Spectral Pattern</af:feature> - <af:author>Klaus Seyerlehner</af:author> - <af:source>MIREX 2012</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/EnvelopeShapeStatistics"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Centroid, spread, skewness and kurtosis of each frame's amplitude envelope. For more details about moments, see :ref:Shape Statistics shapestatistics.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageMagnitudeDifferenceFunction"> - <af:feature>Average Magnitude Difference Function</af:feature> - <dc:description>Average Magnitude Difference Function</dc:description> - <dc:description>Extract the AMDF of an audio signal</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageSquaredDifferenceFunction"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicChangeValue"> - <af:feature>Harmonic Change Value (Chordino)</af:feature> - <af:source>Matthias Mauch</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPeakStructure"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>SpectralPeakStructure</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Derivation, Difference</af:computation> - <af:computation>Entropy</af:computation> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicTristimulus"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>9</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Harmonic Tristimulus</af:feature> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DeltaDeltaMfcc"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>12</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Delta Delta MFCC</af:feature> + <af:typeOfFeature>Spectral Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlux"> <af:computation>Windowing</af:computation> <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Spectral binning</af:computation> - <af:computation>Zero-/Level Crossing Detector</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPeaks"> - <af:temporalscale>interframe</af:temporalscale> + <af:computation>Derivation, Difference</af:computation> + <af:computation>Root Mean Square</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <af:appdomain>several</af:appdomain> + <af:dimensionality>one-dimensional</af:dimensionality> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:abbreviation>SF</af:abbreviation> + <af:computedIn>aubio</af:computedIn> + <af:computedIn>libXtract</af:computedIn> + <af:computedIn>Yaafe</af:computedIn> + <af:computedIn>sMIRk</af:computedIn> + <af:computedIn>Marsyas</af:computedIn> + <af:computedIn>jMIR</af:computedIn> <af:complexity>low</af:complexity> - <af:feature>SpectralPeaks</af:feature> + <af:name>Spectral Flux</af:name> + <af:feature>SpectralFlux</af:feature> + <af:temporalscale>intraframe</af:temporalscale> <af:level>physical</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralMean"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralmean"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> + <dc:description>A measure of the amount of spectral change in a signal. //\n Found by calculating the change in the magnitude spectrum //\n from frame to frame.</dc:description> + <dc:description>Spectral Flux</dc:description> + <dc:description>Flux calculate the flux between the current and prev. spectrum (e.g. output of PowerSpectrum)</dc:description> + <dc:description>Compute flux of :class:spectrum MagnitudeSpectrum between consecutives frames.</dc:description> + <af:dimensions>1</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PhaseSpaceFeatures"> + <af:computation>Phase Space Embedding</af:computation> + <af:computation>Windowing</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>phase space</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>speech recognition</af:appdomain> + <af:complexity>high</af:complexity> + <af:feature>PhaseSpaceFeatures</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <af:level>physical</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralCentroid"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>6</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralKurtosis"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralSpread"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Perceptual Spectral centroid</af:feature> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityII"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityk"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularity"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityI"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityj"/> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Sum, Weighted Sum</af:computation> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Irregularity II</af:feature> + <dc:description>Extract the irregularity (type II) of an audio spectrum</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoiseRobustAuditoryFeature"> + <af:computation>Discrete Cosine Transform</af:computation> + <af:computation>Band-pass Filter Bank</af:computation> + <af:computation>(Non-) Linear Weighting Function</af:computation> + <af:computation>Windowing</af:computation> <af:computation>Derivation, Difference</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoiseRobustAuditoryFeature"> - <af:temporalscale>intraframe</af:temporalscale> + <af:computation>Logarithm</af:computation> + <af:computation>Low-pass Filter</af:computation> + <af:model>psychoacoustic</af:model> + <af:domain>cepstral</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>environmental sound recognition</af:appdomain> <af:complexity>high</af:complexity> <af:feature>NoiseRobustAuditoryFeature</af:feature> - <af:model>psychoacoustic</af:model> + <af:temporalscale>intraframe</af:temporalscale> <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>environmental sound recognition</af:appdomain> - <af:domain>cepstral</af:domain> <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:dimensions>256</af:dimensions> - <af:computation>Derivation, Difference</af:computation> - <af:computation>(Non-) Linear Weighting Function</af:computation> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSharpness"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Compute the sharpness of :class:Loudness coefficients, according to [GP2004]_.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonalChangeDetectionFunction"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicChangeDetectionFunction"/> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Tonal Change Detection Function (Tonal Change)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSlope"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>6</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralShape"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSpread"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralRolloff"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralFlux"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Harmonic Spectral slope</af:feature> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Derivate"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Compute temporal derivative of input feature. The derivative is approximated by</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MeddisHairCell"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>MeddisHairCell for auditory models</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPercentile"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>SuperCollider</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>calculates the cumulative distribution of the frequency spectrum, and outputs the frequency value which corresponds to the desired percentile</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Lowestvalue"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LowestValue"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BassChromagram"> + <af:source>Matthias Mauch</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Bass Chromagram (NNLS Chroma)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralRolloff"> + <af:FrameBased>y</af:FrameBased> <af:computation>Windowing</af:computation> - <af:computation>Band-pass Filter Bank</af:computation> - <af:computation>Discrete Cosine Transform</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Low-pass Filter</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AuditoryFilterBankTemporalEnvelopes"> + <af:computation>Polynomial Root Finding</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:tag>Timbre</af:tag> + <af:tag>Spectral</af:tag> + <af:output>Dense</af:output> + <af:source>Marsyas Plugins</af:source> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>several</af:appdomain> + <af:typeOfFeature>Spectral Feature</af:typeOfFeature> + <af:computedIn>CLAM</af:computedIn> + <af:computedIn>aubio</af:computedIn> + <af:computedIn>Vamp</af:computedIn> + <af:computedIn>libXtract</af:computedIn> + <af:computedIn>MIRToolbox</af:computedIn> + <af:computedIn>Yaafe</af:computedIn> + <af:computedIn>sMIRk</af:computedIn> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>Marsyas</af:computedIn> + <af:computedIn>jMIR</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <af:complexity>low</af:complexity> + <af:Dimensions>1</af:Dimensions> + <af:name>Spectral Rolloff Point</af:name> + <af:feature>Marsyas - Batch Feature Extract - Spectral Rolloff</af:feature> + <af:feature>SpectralRolloff</af:feature> + <af:feature>Spectral Rolloff</af:feature> + <af:feature>Spectral rolloff</af:feature> <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>AuditoryFilterBankTemporalEnvelopes</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>modulation frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>62</af:dimensions> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Energy Spectral Density</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Windowing</af:computation> + <af:dimensions>1</af:dimensions> + <af:signal>Harmonic</af:signal> + <af:signal>Auditory model</af:signal> + <af:signal>Short-term Fourier Transform</af:signal> + <dc:description>The spectral roll-off point is the frequency value so that the 85% of the spectral energy is contained below it</dc:description> + <dc:description>Marsyas - Batch Feature Extract - Spectral Rolloff</dc:description> + <dc:description>The frequency below which 85% of the energy is contained. The percentage may be user-chosen</dc:description> + <dc:description>This function returns the bin number below which 95% of the spectrum energy is found.</dc:description> + <dc:description>Rolloff of each time slice of observations</dc:description> + <dc:description>Spectral roll-off is the frequency so that 99% of the energy is contained below. see [SS1997]_.</dc:description> + <dc:description>The fraction of bins in the power spectrum at which 85% // System.getProperty(line.separator) of the power is at lower frequencies. This is a measure // System.getProperty(line.separator) // of the right-skewedness of the power spectrum.</dc:description> + <dc:description>Extract the rolloff point of an audio spectrum</dc:description> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpread"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Compute the spread of :class:Loudness coefficients, according to [GP2004]_.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StatisticalIntegrator"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Feature transform that compute the temporal mean and variance of input feature over the given number of frames.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MeansofCoefficients"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Means of Coefficients (Mel-Frequency Cepstral Coefficients)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FeatureVariances"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Feature Variances (Similarity)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Oddevenratio"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LocalSingleGaussianModel"> + <af:source>MIREX 2012</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Local Single Gaussian Model</af:feature> + <af:author>Klaus Seyerlehner</af:author> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StandardDeviation"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Standarddeviation"/> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Standard Deviation</af:feature> + <dc:description>Extract the standard deviation of a range of values</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Median"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Median calculate the median of each row of observations</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralRolloff"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>1</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSlope"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Harmonic Spectral rolloff</af:feature> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Crest"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>SuperCollider</af:computedIn> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>measures the "crest factor" of a time-domain signal, i.e. the ratio of the absolute peak to the absolute mean over a certain time period</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimHCL2"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Halfwave rectification, compression and lowpass filtering</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimHCL"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/GeorgeTzanetakisModel"> + <af:source>MIREX 2012</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>George Tzanetakis Model</af:feature> + <af:author>Klaus Seyerlehner</af:author> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/CorrelationPattern"> + <af:source>MIREX 2012</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Correlation Pattern</af:feature> + <af:author>Klaus Seyerlehner</af:author> </rdf:Description> <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSkewness"> - <af:feature>Spectral Skewness</af:feature> - <af:feature>Skewness</af:feature> - <dc:description>Extract the skewness of an audio spectrum</dc:description> - <dc:description>Extract the skewness of a range of values</dc:description> - <dc:description>The skewness is computed from the third order moment of the spectrum. A negative skewness indicates more energy on the lower part of the spectrum. A positive skewness indicates more energy on the high frequency of the spectrum.</dc:description> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>6</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSharpness"/> <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSharpness"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>TimbreToolbox</af:computedIn> <af:computedIn>Vamp</af:computedIn> <af:computedIn>aubio</af:computedIn> <af:computedIn>libXtract</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <dc:description>Extract the skewness of a range of values</dc:description> + <dc:description>The skewness is computed from the third order moment of the spectrum. A negative skewness indicates more energy on the lower part of the spectrum. A positive skewness indicates more energy on the high frequency of the spectrum.</dc:description> + <dc:description>Extract the skewness of an audio spectrum</dc:description> + <af:feature>Spectral skewness</af:feature> + <af:feature>Spectral Skewness</af:feature> + <af:feature>Skewness</af:feature> + <af:signal>Harmonic</af:signal> + <af:signal>Auditory model</af:signal> + <af:signal>Short-term Fourier Transform</af:signal> + <af:typeOfFeature>Spectral Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DistanceMatrix"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StandardDeviation"> - <af:feature>Standard Deviation</af:feature> - <dc:description>Extract the standard deviation of a range of values</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Standarddeviation"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Distance Matrix (Similarity)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/OnsetDetectionFunction"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>SuperCollider</af:computedIn> <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FeatureVariances"> - <af:feature>Feature Variances (Similarity)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Signal"> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MagnitudeSpectrum"> - <af:name>Magnitude Spectrum</af:name> + <af:computedIn>aubio</af:computedIn> + <af:feature>Onset Detection Function (Tempo and Beat Tracker)</af:feature> + <af:feature>Onset Detection Function (Note Onset Detector)</af:feature> + <dc:description>Computes the onset detection function and detect peaks in these functions. When onsets are found above a given silence threshold, and after a minimum inter-onset interval, the output vector returned by aubio_onset_do is filled with 1. Otherwise, the output vector remains 0</dc:description> + <dc:description>An onset detector for musical audio signals</dc:description> + <dc:description>These functions are designed to raise at notes attacks in music signals.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Multiplicity"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>PsySound3</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Autocorrelationfft"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AutoCorrelation"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus1"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusIII"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusII"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus3"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusI"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus2"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ComplexDomainOnsetDetection"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Compute onset detection using a complex domain spectral flux method [CD2003]_.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralSlope"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>6</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralRolloff"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralSpread"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralSkewness"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Perceptual Spectral Slope</af:feature> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Compactness"> + <af:name>Compactness</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>A measure of the strength of different frequency components.</dc:description> - <dc:description>Compute frame's magnitude spectrum, using an analysis window (Hanning or Hamming), or not.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioHarmonicity"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>MPEG7AudioHarmonicity</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>2</af:dimensions> - <af:computation>Sum, Weighted Sum</af:computation> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>A measure of the noisiness of a signal. Found by comparing the components of a window's magnitude spectrum with the magnitude spectrum of its neighbouring windows.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Pitch"> <af:computation>Autocorrelation</af:computation> <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPercentile"> + <af:computation>Sum, Weighted Sum</af:computation> + <af:tag>Pitch</af:tag> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>several</af:appdomain> <af:computedIn>SuperCollider</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>calculates the cumulative distribution of the frequency spectrum, and outputs the frequency value which corresponds to the desired percentile</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FFTBinFrequencies"> - <af:name>FFT Bin Frequency Labels</af:name> + <af:computedIn>aubio</af:computedIn> + <af:computedIn>MIRToolbox</af:computedIn> + <af:complexity>low</af:complexity> + <af:feature>Pitch</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>1</af:dimensions> + <dc:description>Pitch estimated via ACF, autocorrelation spectrum or cepstrum, or a combination</dc:description> + <dc:description>Generic method for pitch detection</dc:description> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimSSI"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Size-shape image (aka the 'sscAI')</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimSAI"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LineSpectralPairs"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LinearSpectralPairs"/> + <af:source>Marsyas Plugins</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Marsyas - Batch Feature Extract - Line Spectral Pairs</af:feature> + <dc:description>Marsyas - Batch Feature Extract - Line Spectral Pairs</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StrongestFrequencyViaFFTMax"> + <af:name>Strongest Frequency Via FFT Maximum</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The bin label, in Hz, of each power spectrum or magnitude spectrum bin. Not useful as a feature in itself, but useful for calculating other features from the magnitude spectrum and power spectrum.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MultiresolutionEntropy"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>MultiresolutionEntropy</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>speech recognition</af:appdomain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>The strongest frequency component of a signal, in Hz, found via finding the FFT bin with the highest power.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSmoothness"> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Entropy</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Normalization</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7SpectralCentroid"> - <af:temporalscale>global</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>MPEG7SpectralCentroid</af:feature> - <af:level>perceptual</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7TemporalCentroid"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:computation>Mean</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaMomentsLogConstantQ"> - <af:name>Area Method of Moments of Log of ConstantQ transform</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>2D statistical method of moments of the log of the ConstantQ transform</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StrongestFrequencyViaZeroCrossings"> - <af:name>Strongest Frequency Via Zero Crossings</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The strongest frequency component of a signal, in Hz, found via the number of zero-crossings.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KullbackLieblerOnsetDetectionFunction"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ModifiedKullbackLieblerOnsetDetectionFunction"/> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Kullback-Liebler onset detection function.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AmplitudeModulation"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Tremelo and Grain description, according to [SE2005]_ and [AE2001]_.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectrum"> - <af:feature>Harmonic Spectrum</af:feature> - <dc:description>Extract the harmonics from an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> <af:computedIn>Vamp</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HighFrequencyContentOnsetDetectionFunction"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>This method computes the High Frequency Content (HFC) of the input spectral frame. The resulting function is efficient at detecting percussive onsets</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicCoefficient"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>HarmonicCoefficient</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>audio segmentation</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Sum, Weighted Sum</af:computation> + <af:feature>Spectral Smoothness</af:feature> + <dc:description>Extract the spectral smoothness of an audio spectrum</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectra"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectrum"/> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Beat Spectra (Similarity)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PulseMetric"> <af:computation>Autocorrelation</af:computation> <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AubioNoteTracker"> - <af:feature>Aubio Note Tracker</af:feature> - <dc:description>Estimate note onset positions, pitches and durations</dc:description> - <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RiseTime"> - <af:computedIn>CLAM</af:computedIn> - <af:tag>Audio</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>the time duration between the signal reached 2% of it maximum value to the time it reaches 80% of its maximum value</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AdaptiveSpectrogram"> - <af:feature>Adaptive Spectrogram</af:feature> - <dc:description>Produce an adaptive spectrogram by adaptive selection from spectrograms at multiple resolutions</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Beats"> - <af:feature>Beats (Tempo and Beat Tracker)</af:feature> - <af:feature>Beats (Aubio Beat Tracker)</af:feature> - <af:feature>Beats (Bar and Beat Tracker)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <af:source>Paul Brossier (method by Matthew Davies, plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaPolynomialApproximationLogConstantQ"> - <dc:description>coeffecients of 2D polynomial best describing the input matrix.</dc:description> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaPolynomialApproximationConstantQMFCC"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:name>2D Polynomial Approximation of Log of ConstantQ</af:name> - <af:computedIn>jMIR</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RatescalefrequencyFeatures"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>RatescalefrequencyFeatures</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>environmental sound recognition</af:appdomain> - <af:domain>eigendomain</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>256</af:dimensions> - <af:computation>Derivation, Difference</af:computation> - <af:computation>(Non-) Linear Weighting Function</af:computation> - <af:computation>Principal Component Analysis</af:computation> <af:computation>Root Mean Square</af:computation> - <af:computation>Discrete Wavelet Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Band-pass Filter Bank</af:computation> - <af:computation>Low-pass Filter</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StatisticalSpectrumDescriptor"> - <af:feature>Statistical Spectrum Descriptor</af:feature> - <af:author>T. Lidy</af:author> - <af:source>MIREX 2008</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalStatisticalSpectrumDescriptor"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/WaveletPyramid"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Pyramid wavelet algorithm</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SubbandEnergyRatio"> + <af:computation>Band-pass Filter (Bank)</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>modulation frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>audio segmentation</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>PulseMetric</af:feature> <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>SubbandEnergyRatio</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> + <af:dimensions>1</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalShapeStatistics"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Compute :ref:shape statistics shapestatistics of signal frames.</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralShapeStatistics"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AttackLeap"> + <af:computedIn>MIRToolbox</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Timbre</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>estimates the amplitude difference between the beginning and the end of the attack phase</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlatness"> + <af:FrameBased>y</af:FrameBased> <af:computation>Regression</af:computation> - <af:computation>Energy Spectral Density</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Normalization</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KeySOM"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Tonality</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Projects the chromagram into a self-organizing map</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KeyMode"> - <af:feature>Key Mode (Key Detector)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonicPitch"> - <af:feature>Tonic Pitch (Key Detector)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonalChangeDetectionFunction"> - <af:feature>Tonal Change Detection Function (Tonal Change)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicChangeDetectionFunction"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ZeroCrossingPeakAmplitudes"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>ZeroCrossingPeakAmplitudes</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>speech recognition</af:appdomain> - <af:domain>temporal</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Logarithm</af:computation> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Spectral binning</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimHCL"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimHCL2"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Halfwave rectification, compression and lowpass filtering</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LogFrequencySpectrum"> - <af:feature>Log-Frequency Spectrum (NNLS Chroma)</af:feature> - <af:source>Matthias Mauch</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TunedLogFrequencySpectrum"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/OctaveBasedSpectralContrast"> - <af:feature>Octave-based Spectral Contrast</af:feature> - <af:author>Shin-Cheol Lim</af:author> - <af:source>MIREX</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Key"> - <af:tag>Tonality</af:tag> - <af:feature>Key (Key Detector)</af:feature> - <dc:description>The best candidate key</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>MIRToolbox</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Power"> - <af:computedIn>Marsyas</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>compute the RMS Power of the input observations into one column*/</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ChordEstimate"> - <af:feature>Chord Estimate (Chordino)</af:feature> - <af:source>Matthias Mauch</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SemitoneSpectrum"> - <af:feature>Semitone Spectrum (NNLS Chroma)</af:feature> - <af:source>Matthias Mauch</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LineSpectralFrequencies"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>LineSpectralFrequencies</af:feature> - <dc:description>Compute the Line Spectral Frequency (LSF) coefficients of a signal frame. Algorithm was adapted from ([TB2006]_, [SH1976]_).</dc:description> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Yaafe</af:computedIn> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Autoregression (Linear Prediction Analysis)</af:computation> - <af:computation>Percentile</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DiscreteWaveletTransform"> - <af:feature>Discrete Wavelet Transform</af:feature> - <dc:description>Visualisation by scalogram</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StrengthOfStrongestBeat"> - <af:name>Strength Of Strongest Beat</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>How strong the strongest beat in the beat histogram is compared to other potential beats.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IntegralLoudness"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>IntegralLoudness</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Exponential Function</af:computation> - <af:computation>(Non-) Linear Weighting Function</af:computation> - <af:computation>Root Mean Square</af:computation> <af:computation>Windowing</af:computation> <af:computation>Discrete Fourier Transform</af:computation> <af:computation>Logarithm</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MelscaleFrequencyCepstralCoefficients"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>Mel-Frequency Cepstral Coefficients</af:feature> - <af:feature>MelscaleFrequencyCepstralCoefficients</af:feature> - <af:feature>Coefficients (Mel-Frequency Cepstral Coefficients)</af:feature> - <af:feature>Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients</af:feature> - <dc:description>Calculate a series of MFCC vectors from the audio</dc:description> - <dc:description>MFCC Mel-Frequency Cepstral Coefficients.Takes as input the N/2+1 spectrum Magnitude points output by PowerSpectrum.</dc:description> - <dc:description>Mel-frequency cepstrum coefficients object</dc:description> - <dc:description>MFCC calculations based upon Orange Cow code</dc:description> - <dc:description>Compute the Mel-frequencies cepstrum coefficients [DM1980]_.</dc:description> - <dc:description>Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients</dc:description> - <dc:description>Extract MFCC from an audio spectrum</dc:description> - <dc:description>Generates a set of MFCCs; these are obtained from a band-based frequency representation (using the Mel scale by default), and then a discrete cosine transform (DCT). The DCT is an efficient approximation for principal components analysis, so that it allows a compression, or reduction of dimensionality, of the data, in this case reducing 42 band readings to a smaller set of MFCCs. A small number of features (the coefficients) end up describing the spectrum. The MFCCs are commonly used as timbral descriptors.</dc:description> - <af:model>psychoacoustic</af:model> - <af:source>Queen Mary, University of London</af:source> + <af:computation>Mean</af:computation> + <af:tag>Spectral</af:tag> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSharpness"/> + <af:output>Dense</af:output> + <af:source>Marsyas Plugins</af:source> <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:source>Marsyas Plugins</af:source> - <af:level>physical</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BarkscaleFrequencyCepstralCoefficients"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:domain>time</af:domain> - <af:domain>cepstral</af:domain> <af:domain>frequency</af:domain> - <af:tag>Spectral</af:tag> - <af:tag>Timbre</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:name>MFCC</af:name> - <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>fingerprinting</af:appdomain> + <af:computedIn>SuperCollider</af:computedIn> <af:computedIn>CLAM</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <af:computedIn>MIRToolbox</af:computedIn> - <af:computedIn>Yaafe</af:computedIn> - <af:computedIn>jMIR</af:computedIn> - <af:computedIn>SuperCollider</af:computedIn> - <af:computedIn>comirva</af:computedIn> <af:computedIn>Vamp</af:computedIn> <af:computedIn>libXtract</af:computedIn> + <af:computedIn>Yaafe</af:computedIn> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <af:complexity>medium</af:complexity> + <af:Dimensions>4</af:Dimensions> + <dc:description>Marsyas - Batch Feature Extract - Spectral Flatness Measure</dc:description> + <dc:description>a power spectrum's geometric mean divided by its arithmetic mean</dc:description> + <dc:description>Extract the spectral flatness of an audio spectrum</dc:description> + <dc:description>Compute global spectral flatness using the ratio between geometric and arithmetic mean.</dc:description> + <af:feature>Spectral flatness</af:feature> + <af:feature>SpectralFlatness</af:feature> + <af:feature>Spectral Flatness</af:feature> + <af:feature>Marsyas - Batch Feature Extract - Spectral Flatness Measure</af:feature> + <af:temporalscale>intraframe</af:temporalscale> <af:dimensions>parameterized</af:dimensions> - <af:abbreviation>MFCC</af:abbreviation> - <af:output>Dense</af:output> - <af:computation>Regression</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Cosine Transform</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/CrossCorrelation"> + <af:signal>Auditory model</af:signal> + <af:signal>Short-term Fourier Transform</af:signal> + <af:typeOfFeature>Various Feature</af:typeOfFeature> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PhaseBasedMethodOnsetDetectionFunction"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Phase Based Method onset detection function.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KeySOM"> + <af:computedIn>MIRToolbox</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Tonality</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Projects the chromagram into a self-organizing map</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ADRess"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>Marsyas</af:computedIn> - <af:computedIn>sMIRk</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Computes the cross correlation of an input.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BassChromagram"> - <af:feature>Bass Chromagram (NNLS Chroma)</af:feature> - <af:source>Matthias Mauch</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Smoothness"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Median"> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Azimuth Discrimination and Resynthesis (ADRess) implementation,which takes a stereo input (i.e. input is expected to be the output of a</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AttackSlope"> + <af:tag>Timbre</af:tag> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>MIRToolbox</af:computedIn> + <af:feature>Attack Slope</af:feature> + <af:signal>Temporal Energy Envelope</af:signal> + <dc:description>average slope of attack phase, computed either as a simple ratio, or a Gaussian-weighted average to emphasise the middle of the attack</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimVQ"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Median calculate the median of each row of observations</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralCentroid"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>MPEG7HarmonicSpectralCentroid</af:feature> - <af:level>perceptual</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralDeviation"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralSpread"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralCentroid"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:computation>Mean</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Zero-/Level Crossing Detector</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Feature"> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalStatisticalSpectrumDescriptor"> - <af:feature>Temporal Statistical Spectrum Descriptor</af:feature> - <af:author>T. Lidy</af:author> - <af:source>MIREX 2008</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StatisticalSpectrumDescriptor"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Vector quantization for dense to sparse features</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AbsMax"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Calculate the maximum absolute value for each observationsignal (per slice).</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TotalEnergy"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>1</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Total energy</af:feature> + <af:typeOfFeature>Energy Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatterns"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPattern"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatternCent"/> + <af:source>MIREX</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaPolynomialApproximation"> - <af:name>2D Polynomial Approximation</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>coeffecients of 2D polynomial best describing the input matrtix.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/4HzModulationHarmonicCoefficients"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>4HzModulationHarmonicCoefficients</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>audio segmentation</af:appdomain> - <af:domain>modulation frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Discrete Cosine Transform</af:computation> - <af:computation>Sum, Weighted Sum</af:computation> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Autocorrelation</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Sone"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>Sone</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>(Non-) Linear Weighting Function</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Low-pass Filter</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PeakerOnset"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Detects if input contains a onset point</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Loudness"> - <af:feature>Loudness</af:feature> - <dc:description>Extract the loudness of an audio signal from its spectrum</dc:description> - <dc:description>The loudness coefficients are the energy in each Bark band, normalized by the overall sum. see [GP2004]_ and [MG1997]_ for more details.</dc:description> - <dc:description>A perceptual loudness function which outputs loudness in sones; this is a variant of an MP3 perceptual model, summing excitation in ERB bands. It models simple spectral and temporal masking, with equal loudness contour correction in ERB bands to obtain phons (relative dB), then a phon to sone transform. The final output is typically in the range of 0 to 64 sones, though higher values can occur with specific synthesised stimuli.</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>Yaafe</af:computedIn> - <af:computedIn>SuperCollider</af:computedIn> - <af:computedIn>PsySound3</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/GeometricMean"> - <af:computedIn>CLAM</af:computedIn> - <af:tag>Spectral</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>the geometric mean for the spectral power values sequence</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonalCentroid"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Tonality</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Calculates the 6-dimensional tonal centroid vector from the chromagram</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BandPeriodicity"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>BandPeriodicity</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>audio segmentation</af:appdomain> - <af:domain>modulation frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>4</af:dimensions> - <af:computation>Sum, Weighted Sum</af:computation> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Autocorrelation</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonalChangePositions"> - <af:feature>Tonal Change Positions (Tonal Change)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicDerivate"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>HarmonicDerivate</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Logarithm</af:computation> - <af:computation>Derivation, Difference</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalRhythmHistogram"> - <af:feature>Temporal Rhythm Histogram</af:feature> - <af:author>T. Lidy</af:author> - <af:source>MIREX 2008</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Bars"> - <af:feature>Bars (Bar and Beat Tracker)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Crest"> - <af:computedIn>SuperCollider</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>measures the "crest factor" of a time-domain signal, i.e. the ratio of the absolute peak to the absolute mean over a certain time period</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Lnorm"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Dct"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus1"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusIII"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus3"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus2"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusI"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusII"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectra"> - <af:feature>Beat Spectra (Similarity)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectrum"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimLocalMax"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Local maximum strobe criterion: decaying threshold with timeout</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StrongestBeat"> - <af:name>Strongest Beat</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The strongest beat in a signal, in beats per minute, found by finding the strongest bin in the beat histogram.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DiscreteCosineTransform"> - <af:feature>Discrete Cosine Transform</af:feature> - <dc:description>Extract the DCT of an audio signal</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Inharmonicity"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>Inharmonicity</af:feature> - <dc:description>the amount of partials that are not multiples of the fundamental frequency, takes into account the amount of energy outside the ideal harmonic series</dc:description> - <dc:description>Extract the inharmonicity of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <af:tag>Pitch</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>MIRToolbox</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:output>Dense</af:output> - <af:computation>Autocorrelation</af:computation> - <af:computation>Median</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Zero-/Level Crossing Detector</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SNR"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute SNR and variations</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IBTINESCBeatTracker"> - <af:feature>IBT - INESC Beat Tracker</af:feature> - <dc:description>Estimates beat locations and tempo (off-line [default] and on-line modes of operation)</dc:description> - <af:source>Marsyas Plugins</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TriangularFilterBank"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Triangular FilterBankTakes as input the N/2+1 spectrum Magnitude points output by PowerSpectrum.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PhaseSpaceFeatures"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>PhaseSpaceFeatures</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>speech recognition</af:appdomain> - <af:domain>phase space</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Phase Space Embedding</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchFastComb"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Pitch detection using a fast harmonic comb filter</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchSchmitt"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Pitch detection using a Schmitt trigger</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LogAttackTime"> - <af:computedIn>CLAM</af:computedIn> - <af:tag>Audio</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>the base 10 logarithm of the rise time</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StrongestFrequencyViaSpectralCentroid"> - <af:name>Strongest Frequency Via Spectral Centroid</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The strongest frequency component of a signal, in Hz, found via the spectral centroid.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Standarddeviation"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StandardDeviation"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Decaytime"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Averagedeviation"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageDeviation"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Sum"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityII"> - <af:feature>Irregularity II</af:feature> - <dc:description>Extract the irregularity (type II) of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularity"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityj"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityI"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityk"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DistanceMatrix"> - <af:feature>Distance Matrix (Similarity)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatterns"> <af:feature>Fluctuation Patterns</af:feature> <af:author>Franz de Leon</af:author> - <af:source>MIREX</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatternCent"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPattern"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchContours:Melody"> - <af:feature>Pitch Contours: Melody (MELODIA - Melody Extraction (intermediate steps))</af:feature> - <af:source>Music Technology Group, Universitat Pompeu Fabra</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FundamentalFrequencyModulation"> + <af:FrameBased>n</af:FrameBased> + <af:Dimensions>2</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Fundamental Frequency Modulation</af:feature> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Attacktime"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSpread"> + <af:FrameBased>y</af:FrameBased> + <af:tag>Spectral</af:tag> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/GeorgeTzanetakisModel"> - <af:feature>George Tzanetakis Model</af:feature> - <af:author>Klaus Seyerlehner</af:author> - <af:source>MIREX 2012</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusI"> - <af:feature>Tristimulus I</af:feature> - <dc:description>Extract the tristimulus (type I) of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusIII"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus3"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus2"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus1"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusII"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PolyphonicTranscription"> - <af:feature>Polyphonic Transcription</af:feature> - <dc:description>Transcribe the input audio to estimated notes</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Noisiness"> - <af:feature>Noisiness</af:feature> - <dc:description>Extract the noisiness of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>SuperCollider</af:computedIn> + <af:computedIn>CLAM</af:computedIn> + <af:computedIn>aubio</af:computedIn> <af:computedIn>Vamp</af:computedIn> <af:computedIn>libXtract</af:computedIn> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <af:typeOfFeature>Spectral Feature</af:typeOfFeature> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + <af:feature>Spread</af:feature> + <af:feature>Spectral Spread</af:feature> + <af:feature>Spectral spread</af:feature> + <af:Dimensions>6</af:Dimensions> + <af:Dimensions>1</af:Dimensions> + <af:signal>Harmonic</af:signal> + <af:signal>Auditory model</af:signal> + <af:signal>Short-term Fourier Transform</af:signal> + <dc:description>Extract the spectral spread of an audio spectrum</dc:description> + <dc:description>measures the spectral spread, which is the magnitude-weighted variance</dc:description> + <dc:description>the variation of the spectrum around its mean value.</dc:description> + <dc:description>The spectral spread is the variance of the spectral distribution around its centroid.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AutoCorrelation"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Autocorrelationfft"/> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaPolynomialApproximationConstantQMFCC"> - <dc:description>coeffecients of 2D polynomial best describing the input matrtix.</dc:description> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaPolynomialApproximationLogConstantQ"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:name>2D Polynomial Approximation ConstantQ MFCC</af:name> - <af:computedIn>jMIR</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSpread"> - <af:tag>Spectral</af:tag> - <af:feature>Spectral Spread</af:feature> - <dc:description>the variation of the spectrum around its mean value.</dc:description> - <dc:description>measures the spectral spread, which is the magnitude-weighted variance</dc:description> - <dc:description>The spectral spread is the variance of the spectral distribution around its centroid.</dc:description> - <dc:description>Extract the spectral spread of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>aubio</af:computedIn> - <af:computedIn>SuperCollider</af:computedIn> - <af:computedIn>CLAM</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageSquaredDifferenceFunction"> - <af:feature>Average Squared Difference Function</af:feature> - <dc:description>Extract the ASDF of an audio signal</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageMagnitudeDifferenceFunction"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatHistogram"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>BeatHistogram</af:feature> - <dc:description>A histogram showing the relative strength of different rhythmic periodicities (tempi) in a signal. Found by calculating the auto-correlation of the RMS.</dc:description> - <dc:description>BeatHistogram</dc:description> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>modulation frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:name>Beat Histogram</af:name> - <af:computedIn>jMIR</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <af:dimensions>6</af:dimensions> - <af:computation>Autocorrelation</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Wavelet Transform</af:computation> - <af:computation>Low-pass Filter</af:computation> - <af:computation>Spectral binning</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MeansofCoefficients"> - <af:feature>Means of Coefficients (Mel-Frequency Cepstral Coefficients)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DecorrelatedFilterBanks"> - <af:feature>Decorrelated Filter Banks</af:feature> - <af:author>Shin-Cheol Lim</af:author> - <af:source>MIREX</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Mean"> - <af:tag>Audio</af:tag> - <af:feature>Mean</af:feature> - <dc:description>Extract the mean of a range of values</dc:description> - <dc:description>Mean calculate the mean of each row of observations</dc:description> - <dc:description>the mean value of the absolute value of the audio samples amplitude</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>Vamp</af:computedIn> <af:computedIn>libXtract</af:computedIn> + <af:computedIn>Yaafe</af:computedIn> + <af:computedIn>sMIRk</af:computedIn> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>Marsyas</af:computedIn> + <af:feature>Autocorrelation</af:feature> + <af:signal>Audio Signal</af:signal> + <dc:description>Compute the generalized autocorrelation of input window</dc:description> + <dc:description>Extract the autocorrelation of an audio signal</dc:description> + <dc:description>Compute autocorrelation coefficients *ac* on each frames.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlatnessAllBands"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Calculates a single spectral flatness value.</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlatnessPerBand"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Barkcoefficients"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BarkCoefficients"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KeyTrack"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>SuperCollider</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>A (12TET major/minor) key tracker based on a pitch class profile of energy across FFT bins and matching this to templates for major and minor scales in all transpositions. It assumes a 440 Hz concert A reference. Output is 0-11 C major to B major, 12-23 C minor to B minor.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalCentroid"> + <af:FrameBased>n</af:FrameBased> + <af:tag>Audio</af:tag> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>TimbreToolbox</af:computedIn> <af:computedIn>CLAM</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoteRepresentationofChordEstimate"> - <af:feature>Note Representation of Chord Estimate (Chordino)</af:feature> - <af:source>Matthias Mauch</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralContrastPattern"> - <af:feature>Spectral Contrast Pattern</af:feature> - <af:author>Klaus Seyerlehner</af:author> - <af:source>MIREX 2012</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlatnessPerBand"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlatnessAllBands"/> + <af:computedIn>cuidado</af:computedIn> + <af:typeOfFeature>GlobalTemporalFeature</af:typeOfFeature> + <af:feature>Temporal Centroid</af:feature> + <af:Dimensions>1</af:Dimensions> + <af:signal>Temporal Energy Envelope</af:signal> + <dc:description>time where signal energy is "concentrated"</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BandTristimulus"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>9</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Band Tristimulus</af:feature> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HistogramIntegrator"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute spectral flatness per log-spaced band of 1/4 octave, as proposed in MPEG7 standard.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MelSpectrum"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute the Mel-frequencies spectrum [DM1980]_.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KeyStrength"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Tonality</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The probability distribution across possible keys</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MagnitudeKurtosis"> - <af:computedIn>CLAM</af:computedIn> - <af:tag>Spectral</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralmean"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralMean"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPeaks"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ChromaCENSFeatures"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>ChromaCENSFeatures</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>12</af:dimensions> - <af:computation>Band-pass Filter Bank</af:computation> - <af:computation>Low-pass Filter</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Normalization</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchHistogram"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>PitchHistogram</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Autocorrelation</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Spectral binning</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaMomentsConstantQMFCC"> - <af:name>Area Method of Moments of ConstantQ-based MFCCs</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>2D statistical method of moments of ConstantQ-based MFCCs</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimPZFC2"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimPZFC"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Time-domain AimPZFC2</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LinearPredictiveCoding"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>LinearPredictiveCoding</af:feature> - <dc:description>Linear Prediction Coeffecients calculated using autocorrelation and Levinson-Durbin recursion.</dc:description> - <dc:description>Compute Warped LPC coefficients, Pitch and Power [STILL UNDER TESTING!].</dc:description> - <dc:description>Compute the Linear Predictor Coefficients (LPC) of a signal frame. It uses autocorrelation and Levinson-Durbin algorithm. see [JM1975]_.</dc:description> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>speech recognition</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:name>LPC</af:name> - <af:computedIn>Yaafe</af:computedIn> - <af:computedIn>jMIR</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:computedIn>sMIRk</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <af:dimensions>parameterized</af:dimensions> - <af:abbreviation>LPC</af:abbreviation> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Autoregression (Linear Prediction Analysis)</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MaxArgMax"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Calculate k maximums and their positions</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Feature transform that compute histogram of input values</dc:description> </rdf:Description> <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tempo"> <af:tag>Rhythm</af:tag> - <af:feature>Tempo (Tempo and Beat Tracker)</af:feature> - <af:feature>Tempo (Aubio Beat Tracker)</af:feature> - <dc:description>Tempo detection driver. This object stores all the memory required for tempo detection algorithm and returns the estimated beat locations.</dc:description> - <dc:description>derived from calculated onsets with ACF, spectrum or both</dc:description> <af:source>Queen Mary, University of London</af:source> <af:source>Paul Brossier (method by Matthew Davies, plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:domain>time</af:domain> <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:output>Dense</af:output> <af:computedIn>Vamp</af:computedIn> <af:computedIn>aubio</af:computedIn> <af:computedIn>MIRToolbox</af:computedIn> + <af:feature>Tempo (Tempo and Beat Tracker)</af:feature> + <af:feature>Tempo (Aubio Beat Tracker)</af:feature> + <dc:description>derived from calculated onsets with ACF, spectrum or both</dc:description> + <dc:description>Tempo detection driver. This object stores all the memory required for tempo detection algorithm and returns the estimated beat locations.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralDissonance"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>PsySound3</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSum"> + <af:name>Beat Sum</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>The sum of all entries in the beat histogram. This is a good measure of the importance of regular beats in a signal.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ConstantQMFCC"> + <af:name>ConstantQ derived MFCCs</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>MFCCs directly caluclated from ConstantQ exponential bins</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AubioSilenceDetector"> + <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Aubio Silence Detector</af:feature> + <dc:description>Detect levels below a certain threshold</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Averagedeviation"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageDeviation"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FeatureMeans"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Feature Means (Similarity)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/4HzModulationEnergy"> + <af:computation>Energy Spectral Density</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Normalization</af:computation> + <af:computation>Band-pass Filter (Bank)</af:computation> + <af:computation>Root Mean Square</af:computation> + <af:model>psychoacoustic</af:model> + <af:domain>modulation frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>audio segmentation</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>4HzModulationEnergy</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:level>physical</af:level> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:dimensions>1</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Daub4"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Daubechies4 WaveletStep</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MeanAbsoluteDeviation"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Calculates the mean absolute deviation</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Envelope"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Extract amplitude envelope using hilbert transform, low-pass filtering and decimation.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MagnitudeSkewness"> + <af:computedIn>CLAM</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Spectral</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoteOnsetDetector"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Note Onset Detector</af:feature> + <dc:description>Estimate individual note onset positions</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Segmenter"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Segmenter</af:feature> + <dc:description>Divide the track into a sequence of consistent segments</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalStatisticalSpectrumDescriptor"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StatisticalSpectrumDescriptor"/> + <af:source>MIREX 2008</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Temporal Statistical Spectrum Descriptor</af:feature> + <af:author>T. Lidy</af:author> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AuditoryFilterBankTemporalEnvelopes"> + <af:computation>Windowing</af:computation> + <af:computation>Energy Spectral Density</af:computation> + <af:computation>Root Mean Square</af:computation> + <af:computation>Band-pass Filter (Bank)</af:computation> + <af:model>psychoacoustic</af:model> + <af:domain>modulation frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>AuditoryFilterBankTemporalEnvelopes</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>physical</af:level> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:dimensions>62</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KeyStrength"> + <af:computedIn>MIRToolbox</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Tonality</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>The probability distribution across possible keys</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchFastComb"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Pitch detection using a fast harmonic comb filter</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StrongestBeat"> + <af:name>Strongest Beat</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>The strongest beat in a signal, in beats per minute, found by finding the strongest bin in the beat histogram.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NNLSChroma"> + <af:source>Matthias Mauch</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>Vamp</af:computedIn> + <af:feature>NNLS Chroma</af:feature> + <dc:description>This plugin provides a number of features derived from a DFT-based log-frequency amplitude spectrum: some variants of the log-frequency spectrum, including a semitone spectrum derived from approximate transcription using the NNLS algorithm; and based on this semitone spectrum, different chroma features.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StatisticalSpectrumDescriptor"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalStatisticalSpectrumDescriptor"/> + <af:source>MIREX 2008</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Statistical Spectrum Descriptor</af:feature> + <af:author>T. Lidy</af:author> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LowFreqEnergyRelation"> + <af:computedIn>CLAM</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Spectral</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>the ratio between the energy over 0-100 Hz band and the whole spectrum energy</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RunningAutocorrelation"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Running calculation (across slices) of the autocorrelation values.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralKurtosis"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>6</af:Dimensions> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Daub4"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Daubechies4 WaveletStep</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MeddisHairCell"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>MeddisHairCell for auditory models</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/evenHarmonicRatio"> - <af:feature>Odd/even Harmonic Ratio</af:feature> - <dc:description>Extract the odd-to-even harmonic ratio of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectrum"> - <af:feature>Spectrum</af:feature> - <dc:description>Compute the complex spectrum of input window</dc:description> - <dc:description>Extract the spectrum of an audio signal</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralShapeDescriptors"> <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Spectral shape descriptors</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LocalSingleGaussianModel"> - <af:feature>Local Single Gaussian Model</af:feature> - <af:author>Klaus Seyerlehner</af:author> - <af:source>MIREX 2012</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PrincipalMelSpectrumComponents"> - <af:feature>Principal Mel-spectrum Components</af:feature> - <af:author>Philippe Hamel</af:author> - <af:source>MIREX</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Peaker"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Pick peaks out of signal</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AubioOnsetDetector"> - <af:feature>Aubio Onset Detector</af:feature> - <dc:description>Estimate note onset times</dc:description> - <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatHistogramLabels"> - <af:name>Beat Histogram Bin Labels</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The bin label, in beats per minute, of each beat histogram bin. Not useful as a feature in itself, but useful for calculating other features from the beat histogram.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Decrease"> - <af:computedIn>CLAM</af:computedIn> - <af:tag>Audio</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>a measure of the amount of decrease in the signal energy</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/CorrelationPattern"> - <af:feature>Correlation Pattern</af:feature> - <af:author>Klaus Seyerlehner</af:author> - <af:source>MIREX 2012</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Variance"> - <af:tag>Audio</af:tag> - <af:feature>Variance</af:feature> - <dc:description>the variance of audio samples amplitude</dc:description> - <dc:description>Extract the variance of a range of values</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>Vamp</af:computedIn> <af:computedIn>libXtract</af:computedIn> - <af:computedIn>CLAM</af:computedIn> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>Marsyas</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <dc:description>Extract the kurtosis of a range of values</dc:description> + <dc:description>The kurtosis is a measure of the flatness of the spectrum, computed from the fourth order moment.</dc:description> + <dc:description>Kurtosis</dc:description> + <dc:description>Extract the kurtosis of an audio spectrum</dc:description> + <af:feature>Kurtosis</af:feature> + <af:feature>Spectral Kurtosis</af:feature> + <af:feature>Spectral kurtosis</af:feature> + <af:signal>Harmonic</af:signal> + <af:signal>Auditory model</af:signal> + <af:signal>Short-term Fourier Transform</af:signal> + <af:typeOfFeature>Spectral Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KeyStrengthPlot"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LineSpectralPairs"> - <af:feature>Marsyas - Batch Feature Extract - Line Spectral Pairs</af:feature> - <dc:description>Marsyas - Batch Feature Extract - Line Spectral Pairs</dc:description> - <af:source>Marsyas Plugins</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LinearSpectralPairs"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Key Strength Plot (Key Detector)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ConstantQSpectrogram"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Constant-Q Spectrogram</af:feature> + <dc:description>Extract a spectrogram with constant ratio of centre frequency to resolution from the input audio</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/EventDensity"> + <af:computedIn>MIRToolbox</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Rhythm</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>estimates the average frequency of events, i.e., the number of note onsets per second</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MelSpectrum"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Compute the Mel-frequencies spectrum [DM1980]_.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPattern"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>comirva</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatterns"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatternCent"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LocalTuning"> + <af:source>Matthias Mauch</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Local Tuning (Tuning)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LineSpectralFrequencies"> + <af:computation>Windowing</af:computation> + <af:computation>Percentile</af:computation> + <af:computation>Autoregression (Linear Prediction Analysis)</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>several</af:appdomain> + <af:computedIn>Yaafe</af:computedIn> + <af:complexity>medium</af:complexity> + <af:feature>LineSpectralFrequencies</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <dc:description>Compute the Line Spectral Frequency (LSF) coefficients of a signal frame. Algorithm was adapted from ([TB2006]_, [SH1976]_).</dc:description> + <af:level>physical</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Volume"> + <af:computation>Power</af:computation> + <af:computation>Windowing</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>temporal</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>several</af:appdomain> + <af:complexity>low</af:complexity> + <af:feature>Volume</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>1</af:dimensions> + <af:level>physical</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPattern"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPatternCent"/> + <af:source>MIREX</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Spectral Pattern</af:feature> + <af:author>Klaus Seyerlehner</af:author> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectrum"> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Marsyas</af:computedIn> <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AubioSilenceDetector"> - <af:feature>Aubio Silence Detector</af:feature> - <dc:description>Detect levels below a certain threshold</dc:description> - <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <af:feature>Spectrum</af:feature> + <dc:description>Extract the spectrum of an audio signal</dc:description> + <dc:description>Compute the complex spectrum of input window</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaMomentsConstantQMFCC"> + <af:name>Area Method of Moments of ConstantQ-based MFCCs</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>2D statistical method of moments of ConstantQ-based MFCCs</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoteOnsets"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoteOnset"/> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimVQ"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Vector quantization for dense to sparse features</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityk"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityj"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularity"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityII"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityI"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RhythmPatterns"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>RhythmPatterns</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>physical</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RhythmPattern"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:feature>Note Onsets (Note Onset Detector)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DWPTbasedRhythmFeature"> + <af:computation>Autocorrelation</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Discrete Wavelet Transform</af:computation> + <af:computation>Root Mean Square</af:computation> + <af:computation>Spectral binning</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>modulation frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> <af:appdomain>music information retrieval</af:appdomain> - <af:domain>modulation frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>80</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>(Non-) Linear Weighting Function</af:computation> - <af:computation>Harmonic Peak Detection</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Low-pass Filter</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimPZFC"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimPZFC2"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Time-domain AimPZFC</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FundamentalFrequency"> - <af:feature>Fundamental Frequency</af:feature> - <dc:description>Extract the fundamental frequency of an audio signal</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StatisticalIntegrator"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Feature transform that compute the temporal mean and variance of input feature over the given number of frames.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralstandarddeviation"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralStandardDeviation"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TimbreDistribution"> - <af:computedIn>comirva</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoteOnset"> - <af:tag>Rhythm</af:tag> - <dc:description>note onset times</dc:description> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoteOnsets"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIRToolbox</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AmplitudeDescriptor"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>AmplitudeDescriptor</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>environmental sound recognition</af:appdomain> - <af:domain>temporal</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>9</af:dimensions> - <af:computation>Windowing</af:computation> - <af:computation>Mean</af:computation> - <af:computation>Spectral binning</af:computation> - <af:computation>Median</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tuning"> - <af:feature>Tuning</af:feature> - <dc:description>The tuning plugin can estimate the local and global tuning of piece. The same tuning method is used for the NNLS Chroma and Chordino plugins.</dc:description> - <af:source>Matthias Mauch</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralDifferenceMethodOnsetDetectionFunction"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Spectral difference method onset detection function.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SilentRegions"> - <af:feature>Silent Regions (Aubio Silence Detector)</af:feature> - <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NonSilentRegions"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimBoxes"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>'Box-cutting' routine to generate dense features</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AdaptiveTimeFrequencyTransform"> - <af:temporalscale>global</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>AdaptiveTimeFrequencyTransform</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>42</af:dimensions> - <af:computation>Adaptive Time Frequency Transform</af:computation> - <af:computation>Spectral binning</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioSpectrumCentroid"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>MPEG7AudioSpectrumCentroid</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>perceptual</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioSpectrumSpread"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Mean</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus2"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusIII"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus3"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusI"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus1"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusII"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalCentroid"> - <af:computedIn>CLAM</af:computedIn> - <af:tag>Audio</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>time where signal energy is "concentrated"</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/CyclicBeatSpectrum"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>CyclicBeatSpectrum</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>modulation frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Derivation, Difference</af:computation> - <af:computation>Comb Filter (Bank)</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Low-pass Filter</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KeyStrengthPlot"> - <af:feature>Key Strength Plot (Key Detector)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralVariance"> - <af:feature>Spectral Variance</af:feature> - <dc:description>Extract the variance of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralVariation"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralvariance"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSmoothness"> - <af:name>Peak Based Spectral Smoothness</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Peak Based Spectral Smoothness is calculated from partials, not frequency bins. It is implemented accortding to McAdams 99 System.getProperty(line.separator) System.getProperty(line.separator) McAdams, S. 1999.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SalienceFunction"> - <af:feature>Salience Function (MELODIA - Melody Extraction (intermediate steps))</af:feature> - <af:source>Music Technology Group, Universitat Pompeu Fabra</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatHistogramFromPeaks"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>BeatHistogramFromPeaks</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Transformto6DTonalContentSpace"> - <af:feature>Transform to 6D Tonal Content Space (Tonal Change)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DWPTbasedRhythmFeature"> - <af:temporalscale>interframe</af:temporalscale> <af:complexity>medium</af:complexity> <af:feature>DWPTbasedRhythmFeature</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>modulation frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Windowing</af:computation> - <af:computation>Autocorrelation</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Spectral binning</af:computation> - <af:computation>Discrete Wavelet Transform</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Chromagram"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>Chromagram</af:feature> - <af:feature>Chromagram (NNLS Chroma)</af:feature> - <dc:description>shows the distribution of energy along the pitches or pitch classes</dc:description> - <dc:description>measures the energy at particular chroma within an nTET tuning system</dc:description> - <dc:description>Extract a series of tonal chroma vectors from the audio</dc:description> - <af:source>Matthias Mauch</af:source> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TempoandBeatTracker"> <af:source>Queen Mary, University of London</af:source> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:domain>frequency</af:domain> - <af:tag>Tonality</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> <af:computedIn>Vamp</af:computedIn> - <af:computedIn>SuperCollider</af:computedIn> - <af:computedIn>MIRToolbox</af:computedIn> - <af:dimensions>12</af:dimensions> - <af:output>Dense</af:output> - <af:computation>Logarithm</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectrum"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>BeatSpectrum</af:feature> - <dc:description>a measure of acoustic self-similarity as a function of time lag, computed from the similarity matrix</dc:description> - <af:level>perceptual</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PeakSpectrum"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectra"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>modulation frequency</af:domain> - <af:tag>Rhythm</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIRToolbox</af:computedIn> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Autocorrelation</af:computation> - <af:computation>Cross-Correlation</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Low-pass Filter</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Volume"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>Volume</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>temporal</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Power</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectrum2Chroma"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Convert spectrum magnitude (e.g. output from PowerSpectrum MarSystem)into a Chroma vector representation.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchMultiComb"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Pitch detection using multiple-comb filter</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RelativeDifferenceFunction"> - <af:name>Relative Difference Function</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Relative Difference Function</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Brightness"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Timbre</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The proportion of energy above a given frequency</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralShapeStatistics"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalShapeStatistics"/> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute shape statistics of :class:MagnitudeSpectrum, (see [GR2004]_).</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7LogAttackTime"> - <af:temporalscale>global</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>MPEG7LogAttackTime</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>temporal</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:computation>Logarithm</af:computation> - <af:computation>Power</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Highestvalue"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HighestValue"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectralDifference"> - <af:feature>Beat Spectral Difference (Bar and Beat Tracker)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LinearPredictionZCR"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>LinearPredictionZCR</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>speech recognition</af:appdomain> - <af:domain>temporal</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Autoregression (Linear Prediction Analysis)</af:computation> - <af:computation>Spectral binning</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Compactness"> - <af:name>Compactness</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>A measure of the noisiness of a signal. Found by comparing the components of a window's magnitude spectrum with the magnitude spectrum of its neighbouring windows.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Bandwidth"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>Bandwidth</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Median</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioFundamentalFrequency"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>MPEG7AudioFundamentalFrequency</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>2</af:dimensions> - <af:computation>Sum, Weighted Sum</af:computation> - <af:computation>Autocorrelation</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ADRessStereoSpectrum"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/EnhADRessStereoSpectrum"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Takes the output of the ADRess (i.e. the panning-frequency maps)and outputs the panning coefficient for each spectral bin (N/2+1 bins).</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StereoSpectrumSources"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StereoSpectrumFeatures"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>StereoSpectrumSources estimates the number of sources placed into different stereo positions.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlatness"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>Spectral Flatness</af:feature> - <af:feature>Marsyas - Batch Feature Extract - Spectral Flatness Measure</af:feature> - <af:feature>SpectralFlatness</af:feature> - <dc:description>a power spectrum's geometric mean divided by its arithmetic mean</dc:description> - <dc:description>Extract the spectral flatness of an audio spectrum</dc:description> - <dc:description>Compute global spectral flatness using the ratio between geometric and arithmetic mean.</dc:description> - <dc:description>Marsyas - Batch Feature Extract - Spectral Flatness Measure</dc:description> - <af:source>Marsyas Plugins</af:source> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:level>perceptual</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSharpness"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>fingerprinting</af:appdomain> - <af:domain>time</af:domain> - <af:domain>frequency</af:domain> - <af:tag>Spectral</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:computedIn>SuperCollider</af:computedIn> - <af:computedIn>Yaafe</af:computedIn> - <af:computedIn>CLAM</af:computedIn> - <af:dimensions>parameterized</af:dimensions> - <af:output>Dense</af:output> - <af:computation>Regression</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Mean</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchContours:All"> - <af:feature>Pitch Contours: All (MELODIA - Melody Extraction (intermediate steps))</af:feature> - <af:source>Music Technology Group, Universitat Pompeu Fabra</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicChangeDetectionFunction"> - <af:tag>Tonality</af:tag> - <dc:description>the flux of the tonal centroid</dc:description> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonalChangeDetectionFunction"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIRToolbox</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ConstantQ"> - <af:name>ConstantQ</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>signal to frequency transform using exponential-spaced frequency bins.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Moments"> - <af:name>Method of Moments</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Statistical Method of Moments of the Magnitude Spectrum.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralVariation"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>MPEG7HarmonicSpectralVariation</af:feature> - <af:level>perceptual</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralDeviation"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralSpread"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:computation>Cross-Correlation</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Zero-/Level Crossing Detector</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TunedLogFrequencySpectrum"> - <af:feature>Tuned Log-Frequency Spectrum (NNLS Chroma)</af:feature> - <af:source>Matthias Mauch</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LogFrequencySpectrum"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/EnhADRess"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Azimuth Discrimination and Resynthesis (EnhADRess) implementation,which takes a stereo input (i.e. input is expected to be the output of a</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tonality"> - <af:feature>Tonality</af:feature> - <dc:description>Extract the tonality an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioSpectrumSpread"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>MPEG7AudioSpectrumSpread</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>perceptual</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioSpectrumCentroid"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Median</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BarandBeatTracker"> - <af:feature>Bar and Beat Tracker</af:feature> - <dc:description>Estimate bar and beat locations</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Krumhansl_key_finder"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Krumhansl-Schmuckler Key-Finding Algorithm</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DistortionDiscriminantAnalysis"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>DistortionDiscriminantAnalysis</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>fingerprinting</af:appdomain> - <af:domain>eigendomain</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>64</af:dimensions> - <af:computation>Logarithm</af:computation> - <af:computation>Principal Component Analysis</af:computation> - <af:computation>Modulated Complex Lapped Transform</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MeanAbsoluteDeviation"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Calculates the mean absolute deviation</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Subbands"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Yin"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Pitch detection using the YIN algorithm</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LowestValue"> - <af:feature>Lowest Value</af:feature> - <dc:description>Extract the lowest value from a given range</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Lowestvalue"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioWaveform"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>MPEG7AudioWaveform</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>temporal</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>2</af:dimensions> - <af:computation>Sum, Weighted Sum</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Histogram</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPattern"> - <af:feature>Spectral Pattern</af:feature> - <af:author>Klaus Seyerlehner</af:author> - <af:source>MIREX</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPatternCent"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Pitch"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>Pitch</af:feature> - <dc:description>Generic method for pitch detection</dc:description> - <dc:description>Pitch estimated via ACF, autocorrelation spectrum or cepstrum, or a combination</dc:description> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <af:tag>Pitch</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>aubio</af:computedIn> - <af:computedIn>SuperCollider</af:computedIn> - <af:computedIn>MIRToolbox</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:computation>Sum, Weighted Sum</af:computation> - <af:computation>Autocorrelation</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Failsafef0"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AttackLeap"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Timbre</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>estimates the amplitude difference between the beginning and the end of the attack phase</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicProminence"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>HarmonicProminence</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>environmental sound recognition</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Autocorrelation</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Zero-/Level Crossing Detector</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SmoothedDetectionFunction"> - <af:feature>Smoothed Detection Function (Note Onset Detector)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/OrderedDistancesfromFirstChannel"> - <af:feature>Ordered Distances from First Channel (Similarity)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LogConstantQ"> - <af:name>Log of ConstantQ</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>logarithm of each bin of exponentially-spaced frequency bins.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/JointAcousticandModuluationFrequency"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>JointAcousticandModuluationFrequency</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>modulation frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Discrete Wavelet Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Low-pass Filter</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ModulationFrequencyVarianceDescriptor"> - <af:feature>Modulation Frequency Variance Descriptor</af:feature> - <af:author>Ponce</af:author> - <af:author>T. Lidy</af:author> - <af:source>MIREX 2008</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FeatureMeans"> - <af:feature>Feature Means (Similarity)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityI"> - <af:feature>Irregularity I</af:feature> - <dc:description>Extract the irregularity (type I) of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityj"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularity"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityII"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityk"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RMSEnergy"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Dynamics</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>root mean square energy</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/EventDensity"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Rhythm</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>estimates the average frequency of events, i.e., the number of note onsets per second</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralRolloff"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>Spectral Rolloff</af:feature> - <af:feature>Marsyas - Batch Feature Extract - Spectral Rolloff</af:feature> - <af:feature>SpectralRolloff</af:feature> - <dc:description>This function returns the bin number below which 95% of the spectrum energy is found.</dc:description> - <dc:description>The frequency below which 85% of the energy is contained. The percentage may be user-chosen</dc:description> - <dc:description>The fraction of bins in the power spectrum at which 85% // System.getProperty(line.separator) of the power is at lower frequencies. This is a measure // System.getProperty(line.separator) // of the right-skewedness of the power spectrum.</dc:description> - <dc:description>Marsyas - Batch Feature Extract - Spectral Rolloff</dc:description> - <dc:description>The spectral roll-off point is the frequency value so that the 85% of the spectral energy is contained below it</dc:description> - <dc:description>Rolloff of each time slice of observations</dc:description> - <dc:description>Spectral roll-off is the frequency so that 99% of the energy is contained below. see [SS1997]_.</dc:description> - <dc:description>Extract the rolloff point of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:source>Marsyas Plugins</af:source> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>time</af:domain> - <af:domain>frequency</af:domain> - <af:tag>Spectral</af:tag> - <af:tag>Timbre</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:name>Spectral Rolloff Point</af:name> - <af:computedIn>aubio</af:computedIn> - <af:computedIn>CLAM</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <af:computedIn>MIRToolbox</af:computedIn> - <af:computedIn>Yaafe</af:computedIn> - <af:computedIn>jMIR</af:computedIn> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:computedIn>sMIRk</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:output>Dense</af:output> - <af:computation>Polynomial Root Finding</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Envelope"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Extract amplitude envelope using hilbert transform, low-pass filtering and decimation.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/EnergyBasedOnsetDetectionFunction"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>This function calculates the local energy of the input spectral frame.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus3"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusIII"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus2"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusI"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus1"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusII"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSharpness"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute the sharpness of :class:Loudness coefficients, according to [GP2004]_.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimHCL2"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimHCL"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Halfwave rectification, compression and lowpass filtering</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Similarity"> - <af:feature>Similarity</af:feature> - <dc:description>Return a distance matrix for similarity between the input audio channels</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ADRess"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Azimuth Discrimination and Resynthesis (ADRess) implementation,which takes a stereo input (i.e. input is expected to be the output of a</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonalChange"> - <af:feature>Tonal Change</af:feature> - <dc:description>Detect and return the positions of harmonic changes such as chord boundaries</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Frames"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Segment input signal into frames.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PeakSpectrum"> - <af:feature>Peak Spectrum</af:feature> - <dc:description>Extract the spectral peaks from an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectrum"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RMSAmplitude"> - <af:feature>RMS Amplitude</af:feature> - <dc:description>Extract the RMS amplitude of an audio signal</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AubioPitchDetector"> - <af:feature>Aubio Pitch Detector</af:feature> - <dc:description>Track estimated note pitches</dc:description> - <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PowerToAverageRatio"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>PowerToAverageRatio (or Power-to-Average Ratio) of a window</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/4HzModulationEnergy"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>4HzModulationEnergy</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>audio segmentation</af:appdomain> - <af:domain>modulation frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Normalization</af:computation> - <af:computation>Energy Spectral Density</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralvariance"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralVariance"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RhythmPattern"> - <af:feature>Rhythm Pattern</af:feature> - <af:author>T. Lidy</af:author> - <af:source>MIREX 2008</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RhythmPatterns"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIREX</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RelativeSpectralPLP"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>RelativeSpectralPLP</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>speech recognition</af:appdomain> - <af:domain>cepstral</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Exponential Function</af:computation> - <af:computation>(Non-) Linear Weighting Function</af:computation> - <af:computation>Cepstral Recursion Formula</af:computation> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Discrete Cosine Transform</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Autoregression (Linear Prediction Analysis)</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StereoSpectrum"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>StereoSpectrum computes the panning index for each spectrumbin of a stereo input (i.e. input is expected to be the output of a</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Barkcoefficients"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BarkCoefficients"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RhythmicFluctuation"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Rhythm</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Rhythmic periodicity along auditory channels</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTracker"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>BeatTracker</af:feature> - <af:level>perceptual</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTrack2"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTrack"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>modulation frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Derivation, Difference</af:computation> - <af:computation>Comb Filter (Bank)</af:computation> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Low-pass Filter</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ModifiedGroupDelay"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>ModifiedGroupDelay</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>speech recognition</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Discrete Cosine Transform</af:computation> - <af:computation>Group Delay Function</af:computation> - <af:computation>Low-pass Filter</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Derivate"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute temporal derivative of input feature. The derivative is approximated by</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FundamentalFrequency(failsafe)"> - <af:feature>Fundamental Frequency (failsafe)</af:feature> - <dc:description>Extract the fundamental frequency of an audio signal (failsafe)</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SilenceTest"> - <af:feature>Silence Test (Aubio Silence Detector)</af:feature> - <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LogLikelihoodofChordEstimate"> - <af:feature>Log-Likelihood of Chord Estimate (Chordino)</af:feature> - <af:source>Matthias Mauch</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSharpness"> - <af:feature>Spectral Sharpness</af:feature> - <dc:description>Extract the spectral sharpness of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSkewness"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlatness"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoteOnsetDetector"> - <af:feature>Note Onset Detector</af:feature> - <dc:description>Estimate individual note onset positions</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/EnhADRessStereoSpectrum"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ADRessStereoSpectrum"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Takes the output of the enhADRessand outputs the panning coefficient for each spectral bin (N/2+1 bins).</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicConcentration"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>HarmonicConcentration</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Energy Spectral Density</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Zero-/Level Crossing Detector</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/OctaveBandSignalIntensity"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute Octave band signal intensity using a trigular octave filter bank ([SE2005]_).</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PulseClarity"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Rhythm</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>estimates the rhythmic clarity, indicating the strength of the beats estimated by the tempo function</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralinharmonicity"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusII"> - <af:feature>Tristimulus II</af:feature> - <dc:description>Extract the tristimulus (type II) of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusIII"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus2"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus3"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusI"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus1"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StereoSpectrumFeatures"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StereoSpectrumSources"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>StereoSpectrumFeatures capture panning information</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Sharpness"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>Sharpness</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>PsySound3</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:dimensions>1</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Mean</af:computation> - <af:computation>(Non-) Linear Weighting Function</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BarkCoefficients"> - <af:feature>Bark Coefficients</af:feature> - <dc:description>Extract bark coefficients from an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Barkcoefficients"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralCrestFactor"> - <af:feature>Marsyas - Batch Feature Extract - Spectral Crest Factor</af:feature> - <dc:description>Marsyas - Batch Feature Extract - Spectral Crest Factor</dc:description> - <af:source>Marsyas Plugins</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AttackSlope"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Timbre</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>average slope of attack phase, computed either as a simple ratio, or a Gaussian-weighted average to emphasise the middle of the attack</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralCrest"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>SpectralCrest</af:feature> - <af:feature>Spectral Crest Measure</af:feature> - <dc:description>Extract the spectral crest measure of an audio spectrum</dc:description> - <dc:description>produces the spectral crest measure, which is an indicator of the "peakiness" of the spectral energy distribution</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>fingerprinting</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>SuperCollider</af:computedIn> - <af:dimensions>parameterized</af:dimensions> - <af:output>Dense</af:output> - <af:computation>Regression</af:computation> - <af:computation>Mean</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Sum, Weighted Sum</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MELODIAMelodyExtraction"> - <af:feature>MELODIA - Melody Extraction</af:feature> - <dc:description>Estimates the melody pitch in polyphonic music (also good for homophonic and monophonic music). Segments without melody are indicated by zero or negative values. For further details please read: J. Salamon and E. Gomez, "Melody Extraction from Polyphonic Music Signals using Pitch Contour Characteristics", IEEE Transactions on Audio, Speech and Language Processing, 20(6):1759-1770, 2012. We would highly appreciate the above reference being cited in publications of work in which this plug-in was used.</dc:description> - <af:source>Music Technology Group, Universitat Pompeu Fabra</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ComplexDomainOnsetDetection"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute onset detection using a complex domain spectral flux method [CD2003]_.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BarkscaleFrequencyCepstralCoefficients"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>BarkscaleFrequencyCepstralCoefficients</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>physical</af:level> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MelscaleFrequencyCepstralCoefficients"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>cepstral</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Cosine Transform</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Hps"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PsychoacousticalPitch"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>PsychoacousticalPitch</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Autocorrelation</af:computation> - <af:computation>(Non-) Linear Weighting Function</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MagnitudeSkewness"> - <af:computedIn>CLAM</af:computedIn> - <af:tag>Spectral</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralCentroid"> - <dc:description>Spectral Centroid calculated based on the center of mass of partials instead of center of mass of bins.</dc:description> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralCentroid"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:name>Partial Based Spectral Centroid</af:name> - <af:computedIn>jMIR</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FractionOfLowEnergyWindows"> - <af:name>Fraction Of Low Energy Windows</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The fraction of the last 100 windows that has an RMS less than the mean RMS in the last 100 windows. This can indicate how much of a signal is quiet relative to the rest of the signal.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Asdf"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralMean"> - <af:tag>Spectral</af:tag> - <dc:description>the spectral power mean value.</dc:description> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralmean"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPeaks"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>CLAM</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PowerSpectrum"> - <af:name>Power Spectrum</af:name> - <af:computedIn>jMIR</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>A measure of the power of different frequency components.</dc:description> - <dc:description>PowerSpectrum computes the magnitude/power of the complex spectrum</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MaxMagFreq"> - <af:computedIn>CLAM</af:computedIn> - <af:tag>Spectral</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>frequency of the maximum magnitude of the spectrum</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NonSilentRegions"> - <af:feature>Non-Silent Regions (Aubio Silence Detector)</af:feature> - <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SilentRegions"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HighestValue"> - <af:feature>Highest Value</af:feature> - <dc:description>Extract the highest value from a given range</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Highestvalue"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StrongestFrequencyViaFFTMax"> - <af:name>Strongest Frequency Via FFT Maximum</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The strongest frequency component of a signal, in Hz, found via finding the FFT bin with the highest power.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Attacktime"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TransientSteadyStateSeparation"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Transient / Steady-state Separation (TSS)</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTrack"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTrack2"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTracker"/> - <af:computedIn>SuperCollider</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Autocorrelation based beat tracker</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicEnergyEntropy"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>HarmonicEnergyEntropy</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Entropy</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Zero-/Level Crossing Detector</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaMoments"> - <af:name>Area Method of Moments</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>2D statistical method of moments</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralCenter"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>SpectralCenter</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> - <af:computation>Energy Spectral Density</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Harmonic Peak Detection</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatCount"> - <af:feature>Beat Count (Bar and Beat Tracker)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LowEnergy"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Dynamics</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>percentage of frames showing less than average energy</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralStandardDeviation"> - <af:feature>Spectral Standard Deviation</af:feature> - <dc:description>Extract the standard deviation of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralstandarddeviation"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SumofValues"> - <af:feature>Sum of Values</af:feature> - <dc:description>Extract the sum of the values in a given range</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PureTonalness"> - <af:computedIn>PsySound3</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralVariability"> - <af:name>Spectral Variability</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The standard deviation of the magnitude spectrum. This is a measure of the variance of a signal's magnitude spectrum.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPatternCent"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPattern"/> - <af:computedIn>comirva</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LinearPredictionCepstralCoefficients"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>Marsyas - Batch Feature Extract - Linear Prediction Cepstral Coefficients</af:feature> - <af:feature>LinearPredictionCepstralCoefficients</af:feature> - <dc:description>Convert LPC coefficients to Cepstrum coefficients.</dc:description> - <dc:description>Marsyas - Batch Feature Extract - Linear Prediction Cepstral Coefficients</dc:description> - <af:source>Marsyas Plugins</af:source> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>speech recognition</af:appdomain> - <af:domain>time</af:domain> - <af:domain>cepstral</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:dimensions>parameterized</af:dimensions> - <af:abbreviation>LPCC</af:abbreviation> - <af:output>Dense</af:output> - <af:computation>Windowing</af:computation> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Autoregression (Linear Prediction Analysis)</af:computation> - <af:computation>Cepstral Recursion Formula</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LowFreqEnergyRelation"> - <af:computedIn>CLAM</af:computedIn> - <af:tag>Spectral</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>the ratio between the energy over 0-100 Hz band and the whole spectrum energy</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSlope"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>Spectral Slope</af:feature> - <af:feature>SpectralSlope</af:feature> - <dc:description>measures the spectral slope, which is the slope of the linear correlation line derived from the spectral magnitudes</dc:description> - <dc:description>The spectral slope represents decreasing rate of the spectral amplitude, computed using a linear regression.</dc:description> - <dc:description>SpectralSlope is computed by linear regression of the spectral amplitude. (see [GP2004]_)</dc:description> - <dc:description>the amount of decreasing of the spectral magnitude</dc:description> - <dc:description>Extract the spectral slope of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>several</af:appdomain> - <af:domain>frequency</af:domain> - <af:tag>Spectral</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>aubio</af:computedIn> - <af:computedIn>CLAM</af:computedIn> - <af:computedIn>Yaafe</af:computedIn> - <af:computedIn>SuperCollider</af:computedIn> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:dimensions>4</af:dimensions> - <af:output>Dense</af:output> - <af:computation>Peak Detection</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralKurtosis"> - <af:feature>Kurtosis</af:feature> - <af:feature>Spectral Kurtosis</af:feature> - <dc:description>Extract the kurtosis of a range of values</dc:description> - <dc:description>Kurtosis</dc:description> - <dc:description>The kurtosis is a measure of the flatness of the spectrum, computed from the fourth order moment.</dc:description> - <dc:description>Extract the kurtosis of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>aubio</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchSynchronousZCPA"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>PitchSynchronousZCPA</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>speech recognition</af:appdomain> - <af:domain>temporal</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Autocorrelation</af:computation> - <af:computation>Band-pass Filter (Bank)</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Sum, Weighted Sum</af:computation> - <af:computation>Spectral binning</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSmoothness"> - <af:feature>Spectral Smoothness</af:feature> - <dc:description>Extract the spectral smoothness of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Multiplicity"> - <af:computedIn>PsySound3</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Flatnessdb"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AutocorrelationMFCCs"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>AutocorrelationMFCCs</af:feature> - <af:model>psychoacoustic</af:model> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>speech recognition</af:appdomain> - <af:domain>cepstral</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Autocorrelation</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Discrete Cosine Transform</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Low-pass Filter</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ComplexDomainMethodOnsetDetectionFunction"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Complex Domain Method onset detection function.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SubbandSpectralFlux"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>SubbandSpectralFlux</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>environmental sound recognition</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>8</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Derivation, Difference</af:computation> - <af:computation>Mean</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Normalization</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Logarithm</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KeyTrack"> - <af:computedIn>SuperCollider</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>A (12TET major/minor) key tracker based on a pitch class profile of energy across FFT bins and matching this to templates for major and minor scales in all transpositions. It assumes a 440 Hz concert A reference. Output is 0-11 C major to B major, 12-23 C minor to B minor.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTracking"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Beat tracking using a context dependant model.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchDiff"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Difference between detected and expected pitch</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralCrestFactorPerBand"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute spectral crest factor per log-spaced band of 1/4 octave.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AubioBeatTracker"> - <af:feature>Aubio Beat Tracker</af:feature> - <dc:description>Estimate the musical tempo and track beat positions</dc:description> - <af:source>Paul Brossier (method by Matthew Davies, plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/OnsetDetectionFunction"> - <af:feature>Onset Detection Function (Note Onset Detector)</af:feature> - <af:feature>Onset Detection Function (Tempo and Beat Tracker)</af:feature> - <dc:description>Computes the onset detection function and detect peaks in these functions. When onsets are found above a given silence threshold, and after a minimum inter-onset interval, the output vector returned by aubio_onset_do is filled with 1. Otherwise, the output vector remains 0</dc:description> - <dc:description>An onset detector for musical audio signals</dc:description> - <dc:description>These functions are designed to raise at notes attacks in music signals.</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>aubio</af:computedIn> - <af:computedIn>SuperCollider</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PhaseBasedMethodOnsetDetectionFunction"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Phase Based Method onset detection function.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalShapeStatistics"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralShapeStatistics"/> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute :ref:shape statistics shapestatistics of signal frames.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TempoandBeatTracker"> <af:feature>Tempo and Beat Tracker</af:feature> <dc:description>Estimate beat locations and tempo</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MaxMin"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Calculate the maximum and minimum values for each observationsignal (per slice).</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HighFrequencyContent"> - <af:computedIn>CLAM</af:computedIn> - <af:tag>Spectral</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>sum of the squared spectrum magnitude multiplied by the wave number of the bin</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralaveragedeviation"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralAverageDeviation"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Smoothness"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralVariation"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralVariance"/> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>SpectralVariation is the normalized correlation of :class:spectrum MagnitudeSpectrum between consecutive frames. (see [GP2004]_)</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ChromaMeans"> - <af:feature>Chroma Means (Chromagram)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaMomentsMFCC"> - <af:name>Area Method of Moments of MFCCs</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>2D statistical method of moments of MFCCs</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimSSI"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimSAI"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Size-shape image (aka the 'sscAI')</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PeakFinder"> - <af:name>Peak Detection</af:name> - <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>All peaks that are within an order of magnitude of the highest point</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Roughness"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Timbre</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>The average dissonance between all pairs of peaks in the spectrum</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MandelEllis"> - <af:computedIn>comirva</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimGammatone"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Slaney's gammatone filterbank</dc:description> <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> </rdf:Description> <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralDispersion"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>low</af:complexity> - <af:feature>SpectralDispersion</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>1</af:dimensions> + <af:computation>Median</af:computation> <af:computation>Windowing</af:computation> <af:computation>Energy Spectral Density</af:computation> <af:computation>Discrete Fourier Transform</af:computation> <af:computation>Harmonic Peak Detection</af:computation> - <af:computation>Median</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralFlux"> - <af:name>Partial Based Spectral Flux</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:complexity>low</af:complexity> + <af:feature>SpectralDispersion</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>1</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SilenceTest"> + <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Silence Test (Aubio Silence Detector)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Attack"> + <af:tag>Timbre</af:tag> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>MIRToolbox</af:computedIn> + <af:feature>Attack</af:feature> + <rdfs:comment>These can have start time *and end time*</rdfs:comment> + <af:signal>Temporal Energy Envelope</af:signal> + <dc:description>estimates the beginning of the attack phase of a note by locating the local minimum before the maximum corresponding to the onset</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Differencevector"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AubioOnsetDetector"> + <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Aubio Onset Detector</af:feature> + <dc:description>Estimate note onset times</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AubioPitchDetector"> + <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Aubio Pitch Detector</af:feature> + <dc:description>Track estimated note pitches</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Decrease"> + <af:computedIn>CLAM</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Audio</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>a measure of the amount of decrease in the signal energy</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimSAI"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Stabilised auditory image</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimSSI"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralCrest"> + <af:FrameBased>y</af:FrameBased> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Mean</af:computation> + <af:computation>Sum, Weighted Sum</af:computation> + <af:computation>Logarithm</af:computation> + <af:Dimensions>4</af:Dimensions> + <af:output>Dense</af:output> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>fingerprinting</af:appdomain> + <af:computedIn>SuperCollider</af:computedIn> + <af:computedIn>Vamp</af:computedIn> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <af:complexity>low</af:complexity> + <dc:description>Extract the spectral crest measure of an audio spectrum</dc:description> + <dc:description>produces the spectral crest measure, which is an indicator of the "peakiness" of the spectral energy distribution</dc:description> + <af:feature>Spectral Crest</af:feature> + <af:feature>Spectral crest</af:feature> + <af:feature>Spectral Crest Measure</af:feature> + <af:feature>SpectralCrest</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <af:signal>Auditory model</af:signal> + <af:signal>Short-term Fourier Transform</af:signal> + <af:typeOfFeature>Various Feature</af:typeOfFeature> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PsychoacousticalPitch"> + <af:computation>Autocorrelation</af:computation> + <af:computation>(Non-) Linear Weighting Function</af:computation> + <af:computation>Root Mean Square</af:computation> + <af:computation>Band-pass Filter (Bank)</af:computation> + <af:model>psychoacoustic</af:model> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>several</af:appdomain> + <af:complexity>high</af:complexity> + <af:feature>PsychoacousticalPitch</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>perceptual</af:level> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:dimensions>parameterized</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ADRessSpectrum"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Takes the output of the ADRess (i.e. the stereo azimuth-frequencymaps) and outputs a single channel spectrum of the part of the freq-azimuth</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralVariation"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>3</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralVariation"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralDeviation"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Harmonic Spectral variation</af:feature> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Transformto6DTonalContentSpace"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Transform to 6D Tonal Content Space (Tonal Change)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RelativeDifferenceFunction"> + <af:name>Relative Difference Function</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>jMIR</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Cacluate the correlation bettween adjacent frames based peaks instead of spectral bins. Peak tracking is primitive - whe the number of bins changes, the bottom bins are matched sequentially and the extra unmatched bins are ignored.) definition = new FeatureDefinition(name, description, true, 1) dependencies = new String[] { Peak Detection, Peak Detection } offsets = new int[] { 0, -1 } } /** * Extract the peak based spectral flux from the window. * @param samples * The samples to extract the feature from. * @param sampling_rate * The sampling rate that the samples are encoded with. * @param other_feature_values * The values of other features that are needed to calculate this * value. The order and offsets of these features must be the * same as those returned by this class's getDependencies and * getDependencyOffsets methods respectively. The first indice * indicates the feature/window and the second indicates the * value. * @return The extracted feature value(s). * @throws Exception * Throws an informative exception if the feature cannot be * calculated. * @see jAudioFeatureExtractor.AudioFeatures.FeatureExtractor#extractFeature(double[], * double, double[][]) */ public double[] extractFeature(double[] samples, double sampling_rate, double[][] other_feature_values) { double[] result = new double[1] double[] old = other_feature_values[1] double[] now = other_feature_values[0] double x, y, xy, x2, y2 x = y = xy = x2 = y2 = 0.0 int peakCount = Math.min(old.length, now.length) for (int i = 0 i < peakCount i) { x = old[i] y = now[i] xy = old[i] * now[i] x2 = old[i] * old[i] y2 = now[i] * now[i] } double top = xy - (x * y) / peakCount double bottom = Math.sqrt(Math.abs((x2 - ((x * x) / peakCount)) * (y2 - ((y * y) / peakCount)))) result[0] = top / bottom return result } /** * Proviede a complete copy of this feature. Used to implement the prottype * pattern */ public Object clone() { return new HarmonicSpectralFlux() } }</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Differencevector"> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Relative Difference Function</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RMSEnergyEnvelope"> + <af:feature>RMS-Energy Envelope</af:feature> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:signal>Temporal Energy Envelope</af:signal> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ChromaCENSFeatures"> + <af:computation>Windowing</af:computation> + <af:computation>Band-pass Filter Bank</af:computation> + <af:computation>Normalization</af:computation> + <af:computation>Root Mean Square</af:computation> + <af:computation>Low-pass Filter</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>ChromaCENSFeatures</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>12</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IBTINESCBeatTracker"> + <af:source>Marsyas Plugins</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>IBT - INESC Beat Tracker</af:feature> + <dc:description>Estimates beat locations and tempo (off-line [default] and on-line modes of operation)</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LogLikelihoodofChordEstimate"> + <af:source>Matthias Mauch</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Log-Likelihood of Chord Estimate (Chordino)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MultiresolutionEntropy"> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Entropy</af:computation> + <af:computation>Normalization</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>speech recognition</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>MultiresolutionEntropy</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchDiff"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Difference between detected and expected pitch</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Key"> + <af:tag>Tonality</af:tag> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:computedIn>MIRToolbox</af:computedIn> + <af:feature>Key (Key Detector)</af:feature> + <dc:description>The best candidate key</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonicPitch"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Tonic Pitch (Key Detector)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicPitchClassProfile"> + <af:source>Music Technology Group, Universitat Pompeu Fabra</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>HPCP</af:feature> + <dc:description>Return the instantaneous evolution of HPCP (Harmonic Pitch Class Profile) of a signal.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalIncrease"> + <af:FrameBased>n</af:FrameBased> + <af:Dimensions>1</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalDecrease"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Temporal Increase</af:feature> + <af:typeOfFeature>GlobalTemporalFeature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HighFrequencyContent"> + <af:computedIn>CLAM</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Spectral</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>sum of the squared spectrum magnitude multiplied by the wave number of the bin</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Roughness"> + <af:computedIn>MIRToolbox</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Timbre</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>The average dissonance between all pairs of peaks in the spectrum</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Beats"> + <af:source>Queen Mary, University of London</af:source> + <af:source>Paul Brossier (method by Matthew Davies, plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Beats (Tempo and Beat Tracker)</af:feature> + <af:feature>Beats (Bar and Beat Tracker)</af:feature> + <af:feature>Beats (Aubio Beat Tracker)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioSpectrumBasis"> + <af:computation>Independent Component Analysis</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Normalization</af:computation> + <af:computation>Singular Value Decomposition</af:computation> + <af:computation>Logarithm</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>eigendomain</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>environmental sound recognition</af:appdomain> + <af:computedIn>MPEG-7</af:computedIn> + <af:complexity>high</af:complexity> + <af:feature>MPEG7AudioSpectrumBasis</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:level>physical</af:level> + <af:dimensions>parameterized</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TotalHarmonicEnergy"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>1</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Total harmonic energy</af:feature> + <af:typeOfFeature>Energy Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralShape"> + <af:FrameBased>Harmonic Spectral centroid</af:FrameBased> + <af:Dimensions>y</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSpread"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralFlux"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSlope"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Harmonic Spectral Shape</af:feature> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PowerSpectrum"> + <af:name>Power Spectrum</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>PowerSpectrum computes the magnitude/power of the complex spectrum</dc:description> + <dc:description>A measure of the power of different frequency components.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StrengthOfStrongestBeat"> + <af:name>Strength Of Strongest Beat</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>How strong the strongest beat in the beat histogram is compared to other potential beats.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DiscreteCosineTransform"> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Discrete Cosine Transform</af:feature> + <dc:description>Extract the DCT of an audio signal</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DecorrelatedFilterBanks"> + <af:source>MIREX</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Decorrelated Filter Banks</af:feature> + <af:author>Shin-Cheol Lim</af:author> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatCount"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Beat Count (Bar and Beat Tracker)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatternCent"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>comirva</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPattern"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FluctuationPatterns"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Energy"> + <af:computedIn>Marsyas</af:computedIn> + <af:computedIn>CLAM</af:computedIn> + <af:computedIn>Yaafe</af:computedIn> + <rdfs:subClassOf 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rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Calculate k minimums and their positions</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusIII"> - <af:feature>Tristimulus III</af:feature> - <dc:description>Extract the tristimulus (type III) of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus2"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus3"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusI"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus1"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusII"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Segmenter"> - <af:feature>Segmenter</af:feature> - <dc:description>Divide the track into a sequence of consistent segments</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityj"> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityk"/> <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularity"/> <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityI"/> <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityII"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityk"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KeyDetector"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Key Detector</af:feature> + <dc:description>Estimate the key of the music</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RhythmPattern"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RhythmPatterns"/> + <af:source>MIREX 2008</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Rhythm Pattern</af:feature> + <af:author>T. Lidy</af:author> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/CyclicBeatSpectrum"> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Derivation, Difference</af:computation> + <af:computation>Comb Filter (Bank)</af:computation> + <af:computation>Root Mean Square</af:computation> + <af:computation>Low-pass Filter</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>modulation frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:complexity>high</af:complexity> + <af:feature>CyclicBeatSpectrum</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaPolynomialApproximationConstantQMFCC"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AreaPolynomialApproximationLogConstantQ"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>jMIR</af:computedIn> + <af:name>2D Polynomial Approximation ConstantQ MFCC</af:name> + <dc:description>coeffecients of 2D polynomial best describing the input matrtix.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralCentroid"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>6</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralCentroid"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>jMIR</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <dc:description>Spectral Centroid calculated based on the center of mass of partials instead of center of mass of bins.</dc:description> + <af:feature>Harmonic Spectral centroid</af:feature> + <af:name>Partial Based Spectral Centroid</af:name> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimBoxes"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>'Box-cutting' routine to generate dense features</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicCoefficient"> + <af:computation>Autocorrelation</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Sum, Weighted Sum</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>audio segmentation</af:appdomain> + <af:complexity>low</af:complexity> + <af:feature>HarmonicCoefficient</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>1</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchYin"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Pitch detection using the YIN algorithm</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FractionOfLowEnergyWindows"> + <af:name>Fraction Of Low Energy Windows</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>The fraction of the last 100 windows that has an RMS less than the mean RMS in the last 100 windows. This can indicate how much of a signal is quiet relative to the rest of the signal.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7TemporalCentroid"> + <af:computation>Power</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Mean</af:computation> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7SpectralCentroid"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>temporal</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:computedIn>MPEG-7</af:computedIn> + <af:complexity>low</af:complexity> + <af:feature>MPEG7TemporalCentroid</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:level>physical</af:level> + <af:dimensions>1</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RMSAmplitude"> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>RMS Amplitude</af:feature> + <dc:description>Extract the RMS amplitude of an audio signal</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MagnitudeKurtosis"> + <af:computedIn>CLAM</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Spectral</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralaveragedeviation"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ADRessSpectrum"> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralAverageDeviation"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Power"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Takes the output of the ADRess (i.e. the stereo azimuth-frequencymaps) and outputs a single channel spectrum of the part of the freq-azimuth</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RunningAutocorrelation"> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>compute the RMS Power of the input observations into one column*/</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RhythmHistogram"> + <af:source>MIREX 2008</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Rhythm Histogram</af:feature> + <af:author>T. Lidy</af:author> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/evenHarmonicRatio"> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Odd/even Harmonic Ratio</af:feature> + <dc:description>Extract the odd-to-even harmonic ratio of an audio spectrum</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DaubechiesWaveletCoefficientHistogram"> + <af:computation>Windowing</af:computation> + <af:computation>Discrete Wavelet Transform</af:computation> + <af:computation>Spectral binning</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>DaubechiesWaveletCoefficientHistogram</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>28</af:dimensions> + <af:level>physical</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralCentroid"> + <af:computation>Level Crossing Detector</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Mean</af:computation> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralSpread"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralDeviation"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralCentroid"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:computedIn>MPEG-7</af:computedIn> + <af:complexity>medium</af:complexity> + <af:feature>MPEG7HarmonicSpectralCentroid</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>perceptual</af:level> + <af:dimensions>1</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTracking"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Beat tracking using a context dependant model.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ChromaMeans"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Chroma Means (Chromagram)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LogConstantQ"> + <af:name>Log of ConstantQ</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>logarithm of each bin of exponentially-spaced frequency bins.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SilentRegions"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NonSilentRegions"/> + <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Silent Regions (Aubio Silence Detector)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Noisiness"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>1</af:Dimensions> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>Vamp</af:computedIn> + <af:computedIn>libXtract</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <dc:description>Extract the noisiness of an audio spectrum</dc:description> + <af:feature>Noisiness</af:feature> + <af:signal>Harmonic</af:signal> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AmplitudeofEnergyModulation"> + <af:feature>Amplitude of Energy Modulation</af:feature> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:signal>Temporal Energy Envelope</af:signal> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/F0"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RelaitvespecificLoudness"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>24</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>RelaitveSpecific Loudness</af:feature> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralFlux"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralShape"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSlope"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>jMIR</af:computedIn> + <af:name>Partial Based Spectral Flux</af:name> + <dc:description>Cacluate the correlation bettween adjacent frames based peaks instead of spectral bins. Peak tracking is primitive - whe the number of bins changes, the bottom bins are matched sequentially and the extra unmatched bins are ignored.) definition = new FeatureDefinition(name, description, true, 1) dependencies = new String[] { Peak Detection, Peak Detection } offsets = new int[] { 0, -1 } } /** * Extract the peak based spectral flux from the window. * @param samples * The samples to extract the feature from. * @param sampling_rate * The sampling rate that the samples are encoded with. * @param other_feature_values * The values of other features that are needed to calculate this * value. The order and offsets of these features must be the * same as those returned by this class's getDependencies and * getDependencyOffsets methods respectively. The first indice * indicates the feature/window and the second indicates the * value. * @return The extracted feature value(s). * @throws Exception * Throws an informative exception if the feature cannot be * calculated. * @see jAudioFeatureExtractor.AudioFeatures.FeatureExtractor#extractFeature(double[], * double, double[][]) */ public double[] extractFeature(double[] samples, double sampling_rate, double[][] other_feature_values) { double[] result = new double[1] double[] old = other_feature_values[1] double[] now = other_feature_values[0] double x, y, xy, x2, y2 x = y = xy = x2 = y2 = 0.0 int peakCount = Math.min(old.length, now.length) for (int i = 0 i < peakCount i) { x = old[i] y = now[i] xy = old[i] * now[i] x2 = old[i] * old[i] y2 = now[i] * now[i] } double top = xy - (x * y) / peakCount double bottom = Math.sqrt(Math.abs((x2 - ((x * x) / peakCount)) * (y2 - ((y * y) / peakCount)))) result[0] = top / bottom return result } /** * Proviede a complete copy of this feature. Used to implement the prottype * pattern */ public Object clone() { return new HarmonicSpectralFlux() } }</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralKurtosis"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>6</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralCentroid"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Perceptual Spectral kurtosis</af:feature> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralVariation"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>3</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Perceptual Spectral Variation</af:feature> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/OddToEvenBandRatio"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>3</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Odd to Even Band Ratio</af:feature> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AdaptiveSpectrogram"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Adaptive Spectrogram</af:feature> + <dc:description>Produce an adaptive spectrogram by adaptive selection from spectrograms at multiple resolutions</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimLocalMax"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Running calculation (across slices) of the autocorrelation values.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralCentroid"> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Local maximum strobe criterion: decaying threshold with timeout</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ModifiedGroupDelay"> + <af:computation>Discrete Cosine Transform</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Group Delay Function</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Low-pass Filter</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>speech recognition</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>ModifiedGroupDelay</af:feature> <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <af:level>physical</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralAverageDeviation"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralaveragedeviation"/> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Spectral Average Deviation</af:feature> + <dc:description>Extract the average deviation of an audio spectrum</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StrongestFrequencyViaSpectralCentroid"> + <af:name>Strongest Frequency Via Spectral Centroid</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>The strongest frequency component of a signal, in Hz, found via the spectral centroid.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Deviation"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Standard Deviation of each row of observations</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TotalEnergyModulation"> + <af:FrameBased>n</af:FrameBased> + <af:Dimensions>2</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Total Energy Modulation</af:feature> + <af:typeOfFeature>Energy Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TransientSteadyStateSeparation"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Transient / Steady-state Separation (TSS)</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Decaytime"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/GeometricMean"> + <af:computedIn>CLAM</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Spectral</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>the geometric mean for the spectral power values sequence</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Subbands"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DecreaseSlope"> + <af:feature>DecreaseSlope</af:feature> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:signal>Temporal Energy Envelope</af:signal> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AubioNoteTracker"> + <af:source>Paul Brossier (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Aubio Note Tracker</af:feature> + <dc:description>Estimate note onset positions, pitches and durations</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Hps"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTrack"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>SuperCollider</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Autocorrelation based beat tracker</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTracker"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTrack2"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SubbandSpectralFlux"> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Derivation, Difference</af:computation> + <af:computation>Mean</af:computation> + <af:computation>Logarithm</af:computation> + <af:computation>Normalization</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>environmental sound recognition</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>SubbandSpectralFlux</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>8</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/EnhADRessStereoSpectrum"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Takes the output of the enhADRessand outputs the panning coefficient for each spectral bin (N/2+1 bins).</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ADRessStereoSpectrum"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DistancefromFirstChannel"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Distance from First Channel (Similarity)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicEnergyEntropy"> + <af:computation>Level Crossing Detector</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Entropy</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>HarmonicEnergyEntropy</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>1</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Chordino"> + <af:source>Matthias Mauch</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Chordino</af:feature> + <dc:description>Chordino provides a simple chord transcription based on NNLS Chroma (as in the NNLS Chroma plugin). Chord profiles given by the user in the file chord.dict are used to calculate frame-wise chord similarities. A simple (non-state-of-the-art!) algorithm smoothes these to provide a chord transcription using a standard HMM/Viterbi approach.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralEnvelopeShape"> + <af:FrameBased>Perceptual Spectral centroid</af:FrameBased> + <af:Dimensions>y</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Perceptual Spectral Envelope Shape</af:feature> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageDeviation"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Averagedeviation"/> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Average Deviation</af:feature> + <dc:description>Extract the average deviation of a range of values</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RunningStatistics"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Gathers the running average, variance, standard deviation, etc.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlatnessPerBand"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Compute spectral flatness per log-spaced band of 1/4 octave, as proposed in MPEG7 standard.</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFlatnessAllBands"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ComplexDomainMethodOnsetDetectionFunction"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Complex Domain Method onset detection function.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Sharpness"> + <af:FrameBased>y</af:FrameBased> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>(Non-) Linear Weighting Function</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Mean</af:computation> + <af:Dimensions>1</af:Dimensions> + <af:model>psychoacoustic</af:model> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>several</af:appdomain> + <af:computedIn>PsySound3</af:computedIn> + <af:computedIn>libXtract</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <af:complexity>medium</af:complexity> + <af:feature>Sharpness</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>perceptual</af:level> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + <af:dimensions>1</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioHarmonicity"> + <af:computation>Autocorrelation</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Sum, Weighted Sum</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>several</af:appdomain> + <af:computedIn>MPEG-7</af:computedIn> + <af:complexity>medium</af:complexity> + <af:feature>MPEG7AudioHarmonicity</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>perceptual</af:level> + <af:dimensions>2</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MinArgMin"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Calculate k minimums and their positions</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicChangeValue"> + <af:source>Matthias Mauch</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Harmonic Change Value (Chordino)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchSchmitt"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Pitch detection using a Schmitt trigger</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Oddtoevenharmonicratio"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/OddToEvenHarmonicRatio"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:feature>Odd to even harmonic ratio</af:feature> + <af:signal>Harmonic</af:signal> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralShape"> + <af:FrameBased>Spectral centroid</af:FrameBased> + <af:Dimensions>y</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSlope"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Spectral Shape</af:feature> + <af:typeOfFeature>Spectral Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SubbandEnergyRatio"> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Energy Spectral Density</af:computation> + <af:computation>Normalization</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>several</af:appdomain> <af:complexity>low</af:complexity> - <af:feature>Spectral Centroid</af:feature> - <af:feature>SpectralCentroid</af:feature> - <af:feature>Marsyas - Batch Feature Extract - Centroid</af:feature> - <dc:description>the weighted mean frequency, or the "centre of mass" of the spectrum</dc:description> - <dc:description>Centroid of each time slice of observations</dc:description> - <dc:description>The spectral centroid represents the barycenter of the spectrum.</dc:description> - <dc:description>Extract the spectral centroid of an audio spectrum</dc:description> - <dc:description>The centre of mass of the power spectrum.</dc:description> - <dc:description>Marsyas - Batch Feature Extract - Centroid</dc:description> - <dc:description>the frequency where the center of mass of the spectral power distribution lies</dc:description> + <af:feature>SubbandEnergyRatio</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <af:level>physical</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimPZFC"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Time-domain AimPZFC</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimPZFC2"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SumofValues"> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Sum of Values</af:feature> + <dc:description>Extract the sum of the values in a given range</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HighFrequencyContentOnsetDetectionFunction"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>This method computes the High Frequency Content (HFC) of the input spectral frame. The resulting function is efficient at detecting percussive onsets</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPeaks"> + <af:computation>Windowing</af:computation> + <af:computation>Sum, Weighted Sum</af:computation> + <af:computation>Derivation, Difference</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralMean"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralmean"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:complexity>low</af:complexity> + <af:feature>SpectralPeaks</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <af:level>physical</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralVariability"> + <af:name>Spectral Variability</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>The standard deviation of the magnitude spectrum. This is a measure of the variance of a signal's magnitude spectrum.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralMean"> + <af:tag>Spectral</af:tag> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralPeaks"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralmean"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>CLAM</af:computedIn> + <dc:description>the spectral power mean value.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectralDifference"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Beat Spectral Difference (Bar and Beat Tracker)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ChromagramandBassChromagram"> + <af:source>Matthias Mauch</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Chromagram and Bass Chromagram (NNLS Chroma)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BarandBeatTracker"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Bar and Beat Tracker</af:feature> + <dc:description>Estimate bar and beat locations</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/EnergyBasedOnsetDetectionFunction"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>This function calculates the local energy of the input spectral frame.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonalCentroid"> + <af:computedIn>MIRToolbox</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Tonality</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Calculates the 6-dimensional tonal centroid vector from the chromagram</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchMultiComb"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>aubio</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Pitch detection using multiple-comb filter</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusIII"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusII"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus3"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusI"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus2"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus1"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:feature>Tristimulus</af:feature> + <af:signal>Harmonic</af:signal> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tuning"> + <af:source>Matthias Mauch</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Tuning</af:feature> + <dc:description>The tuning plugin can estimate the local and global tuning of piece. The same tuning method is used for the NNLS Chroma and Chordino plugins.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MELODIAMelodyExtraction(intermediatesteps)"> + <af:source>Music Technology Group, Universitat Pompeu Fabra</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>Vamp</af:computedIn> + <af:feature>MELODIA - Melody Extraction (intermediate steps)</af:feature> + <dc:description>Provides visualisations of the intermediate steps calculated by the melody extraction algorithm implemented in the MELODIA - Melody Extraction plug-in. For further details please read: J. Salamon and E. Gomez, "Melody Extraction from Polyphonic Music Signals using Pitch Contour Characteristics", IEEE Transactions on Audio, Speech and Language Processing, 20(6):1759-1770, 2012. We would highly appreciate the above reference being cited in publications of work in which this plug-in was used.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageSquaredDifferenceFunction"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageMagnitudeDifferenceFunction"/> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Average Squared Difference Function</af:feature> + <dc:description>Extract the ASDF of an audio signal</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/OctaveBasedSpectralContrast"> + <af:source>MIREX</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Octave-based Spectral Contrast</af:feature> + <af:author>Shin-Cheol Lim</af:author> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LinearPredictiveCoding"> + <af:computation>Windowing</af:computation> + <af:computation>Autoregression (Linear Prediction Analysis)</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Band-pass Filter (Bank)</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <af:appdomain>speech recognition</af:appdomain> + <af:dimensionality>multi-dimensional</af:dimensionality> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:abbreviation>LPC</af:abbreviation> + <af:computedIn>Yaafe</af:computedIn> + <af:computedIn>jMIR</af:computedIn> + <af:computedIn>Marsyas</af:computedIn> + <af:computedIn>libXtract</af:computedIn> + <af:computedIn>sMIRk</af:computedIn> + <af:complexity>low</af:complexity> + <af:name>LPC</af:name> + <af:feature>LinearPredictiveCoding</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>physical</af:level> + <dc:description>Linear Prediction Coeffecients calculated using autocorrelation and Levinson-Durbin recursion.</dc:description> + <dc:description>Compute the Linear Predictor Coefficients (LPC) of a signal frame. It uses autocorrelation and Levinson-Durbin algorithm. see [JM1975]_.</dc:description> + <dc:description>Compute Warped LPC coefficients, Pitch and Power [STILL UNDER TESTING!].</dc:description> + <af:dimensions>parameterized</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PrincipalMelSpectrumComponents"> + <af:source>MIREX</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Principal Mel-spectrum Components</af:feature> + <af:author>Philippe Hamel</af:author> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchHistogram"> + <af:computation>Autocorrelation</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Root Mean Square</af:computation> + <af:computation>Spectral binning</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>PitchHistogram</af:feature> + <af:temporalscale>interframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSpread"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>6</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralSpread"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralShape"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralDecrease"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSlope"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Harmonic Spectral spread</af:feature> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralContrastPattern"> + <af:source>MIREX 2012</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Spectral Contrast Pattern</af:feature> + <af:author>Klaus Seyerlehner</af:author> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RelativeSpectralPLP"> + <af:computation>Discrete Cosine Transform</af:computation> + <af:computation>Exponential Function</af:computation> + <af:computation>(Non-) Linear Weighting Function</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Cepstral Recursion Formula</af:computation> + <af:computation>Band-pass Filter (Bank)</af:computation> + <af:computation>Autoregression (Linear Prediction Analysis)</af:computation> + <af:computation>Logarithm</af:computation> + <af:model>psychoacoustic</af:model> + <af:domain>cepstral</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>speech recognition</af:appdomain> + <af:complexity>high</af:complexity> + <af:feature>RelativeSpectralPLP</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>physical</af:level> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:dimensions>parameterized</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalDecrease"> + <af:FrameBased>n</af:FrameBased> + <af:Dimensions>1</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalIncrease"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Temporal Decrease</af:feature> + <af:typeOfFeature>GlobalTemporalFeature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AutocorrelationMFCCs"> + <af:computation>Autocorrelation</af:computation> + <af:computation>Discrete Cosine Transform</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Logarithm</af:computation> + <af:computation>Low-pass Filter</af:computation> + <af:model>psychoacoustic</af:model> + <af:domain>cepstral</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>speech recognition</af:appdomain> + <af:complexity>high</af:complexity> + <af:feature>AutocorrelationMFCCs</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>physical</af:level> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:dimensions>parameterized</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectrum2Chroma"> + <rdfs:subClassOf 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rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:signal>Temporal Energy Envelope</af:signal> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TemporalRhythmHistogram"> + <af:source>MIREX 2008</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIREX</af:computedIn> + <af:feature>Temporal Rhythm Histogram</af:feature> + <af:author>T. 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rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Feature transform that compute peaks of the autocorrelation function, outputs peaks and amplitude.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PeakFinder"> + <af:name>Peak Detection</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>All peaks that are within an order of magnitude of the highest point</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralCrestFactorPerBand"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Compute spectral crest factor per log-spaced band of 1/4 octave.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicDerivate"> + <af:computation>Windowing</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Derivation, Difference</af:computation> + <af:computation>Logarithm</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:complexity>medium</af:complexity> + <af:feature>HarmonicDerivate</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>parameterized</af:dimensions> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralDecrease"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>1</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>Yaafe</af:computedIn> + <af:computedIn>aubio</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <dc:description>Compute spectral decrease accoding to [GP2004]_.</dc:description> + <dc:description>The spectral decrease is another representation of the decreasing rate, based on perceptual criteria.</dc:description> + <af:feature>Spectral decrease</af:feature> + <af:feature>Spectral Decrease</af:feature> + <af:signal>Harmonic</af:signal> + <af:signal>Auditory model</af:signal> + <af:signal>Short-term Fourier Transform</af:signal> + <af:typeOfFeature>Spectral Feature</af:typeOfFeature> + </rdf:Description> + 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rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MandelEllis"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>comirva</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StereoSpectrum"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>StereoSpectrum computes the panning index for each spectrumbin of a stereo input (i.e. input is expected to be the output of a</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Nonzerocount"> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:computedIn>libXtract</af:computedIn> + <af:feature>Non-zero count</af:feature> + <dc:description>Extract the number of non-zero elements in an input spectrum</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ZeroCrossingRate"> <af:source>Marsyas Plugins</af:source> <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <af:domain>time</af:domain> + <af:domain>temporal</af:domain> + <af:appdomain>several</af:appdomain> + <af:computedIn>SuperCollider</af:computedIn> + 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Rate</af:feature> + <af:name>Zero Crossings</af:name> + <af:signal>Audio Signal</af:signal> + <dc:description>Marsyas - Batch Feature Extract - Zero Crossings</dc:description> + <dc:description>a measure of the number of time the signal value cross the zero axe, averaged over the whole signal</dc:description> + <dc:description>Extract the zero crossing rate of an audio signal</dc:description> + <dc:description>Outputs a frequency based upon the distance between interceptions of the X axis. The X intercepts are determined via linear interpolation so this gives better than just integer wavelength resolution. This is a very crude pitch follower, but can be useful in some situations.</dc:description> + <dc:description>Detect and count zero crossing points</dc:description> + <dc:description>Time-domain ZeroCrossings</dc:description> + <dc:description>The number of times the waveform changed sign. An indication of frequency as well as noisiness.</dc:description> + <dc:description>Compute zero-crossing rate in frames. see [SS1997]_.</dc:description> + <af:FrameBased>y</af:FrameBased> + <af:computation>Windowing</af:computation> + <af:computation>Spectral binning</af:computation> + <af:Dimensions>1</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Bars"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Bars (Bar and Beat Tracker)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SignalAutoCorrelationFunction"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>12</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Signal Auto-correlation function</af:feature> + <af:typeOfFeature>GlobalTemporalFeature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LowEnergy"> + <af:computedIn>MIRToolbox</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Dynamics</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>percentage of frames showing less than average energy</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/GlobalSpectralShapeDescription"> + <af:FrameBased>MFCC</af:FrameBased> + <af:Dimensions>y</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Global Spectral Shape Description</af:feature> + <af:typeOfFeature>Spectral Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageMagnitudeDifferenceFunction"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageSquaredDifferenceFunction"/> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Marsyas</af:computedIn> + <af:computedIn>Vamp</af:computedIn> + <af:computedIn>libXtract</af:computedIn> + <af:feature>Average Magnitude Difference Function</af:feature> + <dc:description>Extract the AMDF of an audio signal</dc:description> + <dc:description>Average Magnitude Difference Function</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Standarddeviation"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StandardDeviation"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Mode"> + <af:computedIn>MIRToolbox</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Tonality</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Major vs. Minor, calculated as the strength difference between the best major and best minor key candidates</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ChordEstimate"> + <af:source>Matthias Mauch</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Chord Estimate (Chordino)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualSpectralRolloff"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>1</af:Dimensions> + <af:similarTo 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classes</dc:description> + <dc:description>measures the energy at particular chroma within an nTET tuning system</dc:description> + <dc:description>Extract a series of tonal chroma vectors from the audio</dc:description> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AmplitudeModulation"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Tremelo and Grain description, according to [SE2005]_ and [AE2001]_.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/OctaveBandSignalIntensity"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + 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takes a stereo input (i.e. input is expected to be the output of a</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Brightness"> + <af:computedIn>MIRToolbox</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Timbre</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>The proportion of energy above a given frequency</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralCentroid"> + <af:FrameBased>y</af:FrameBased> + <af:computation>Regression</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Discrete Fourier Transform</af:computation> + <af:computation>Logarithm</af:computation> + <af:computation>Mean</af:computation> + <af:tag>Spectral</af:tag> + <af:output>Dense</af:output> + <af:source>Marsyas Plugins</af:source> + 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Not useful as a feature in itself, but useful for calculating other features from the magnitude spectrum and power spectrum.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Peaker"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Pick peaks out of signal</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FrequencyofEnergyModulation"> + <af:feature>Frequency of Energy Modulation</af:feature> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:signal>Temporal Energy Envelope</af:signal> + </rdf:Description> + <rdf:Description 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feature streams</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTracker"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTrack"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralVariance"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralVariation"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralvariance"/> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Spectral Variance</af:feature> + <dc:description>Extract the variance of an audio spectrum</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Rmsamplitude"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus3"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusIII"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusII"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TristimulusI"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus2"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus1"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tristimulus"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Dct"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BandSpectralDeviation"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>3</af:Dimensions> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Band Spectral Deviation</af:feature> + <af:typeOfFeature>Perceptual Feature</af:typeOfFeature> + </rdf:Description> + 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+ <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Krumhansl-Schmuckler Key-Finding Algorithm</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LogAttackTime"> + <af:FrameBased>n</af:FrameBased> + <af:tag>Audio</af:tag> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>CLAM</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <af:typeOfFeature>GlobalTemporalFeature</af:typeOfFeature> + <af:feature>Log-Attack Time</af:feature> + <af:feature>Log Attack Time</af:feature> + <af:Dimensions>1</af:Dimensions> + <af:signal>Temporal Energy Envelope</af:signal> + <dc:description>the base 10 logarithm of the rise time</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SmoothedDetectionFunction"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Smoothed Detection Function (Note Onset Detector)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Cepstrum"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Yaafe</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Feature transform that compute cepstrum coefficients of input feature frames. (use DCT II)</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Moments"> + <af:name>Method of Moments</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>jMIR</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Statistical Method of Moments of the Magnitude Spectrum.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FundamentalFrequency"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>1</af:Dimensions> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>Vamp</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <dc:description>Extract the fundamental frequency of an audio signal</dc:description> + <af:feature>Fundamental Frequency</af:feature> + <af:feature>Fundamental frequency</af:feature> + <af:signal>Harmonic</af:signal> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MELODIAMelodyExtraction"> + <af:source>Music Technology Group, Universitat Pompeu Fabra</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>MELODIA - Melody Extraction</af:feature> + <dc:description>Estimates the melody pitch in polyphonic music (also good for homophonic and monophonic music). Segments without melody are indicated by zero or negative values. For further details please read: J. Salamon and E. Gomez, "Melody Extraction from Polyphonic Music Signals using Pitch Contour Characteristics", IEEE Transactions on Audio, Speech and Language Processing, 20(6):1759-1770, 2012. We would highly appreciate the above reference being cited in publications of work in which this plug-in was used.</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Tonality"> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:computedIn>libXtract</af:computedIn> + <af:feature>Tonality</af:feature> + <dc:description>Extract the tonality an audio spectrum</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Inharmonicity"> + <af:FrameBased>y</af:FrameBased> + <af:computation>Level Crossing Detector</af:computation> + <af:computation>Median</af:computation> + <af:computation>Windowing</af:computation> + <af:computation>Autocorrelation</af:computation> + <af:Dimensions>1</af:Dimensions> + <af:output>Dense</af:output> + <af:tag>Pitch</af:tag> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:computedIn>TimbreToolbox</af:computedIn> + <af:computedIn>Vamp</af:computedIn> + <af:computedIn>MIRToolbox</af:computedIn> + <af:computedIn>cuidado</af:computedIn> + <af:complexity>medium</af:complexity> + <dc:description>Extract the inharmonicity of an audio spectrum</dc:description> + <dc:description>the amount of partials that are not multiples of the fundamental frequency, takes into account the amount of energy outside the ideal harmonic series</dc:description> + <af:feature>Inharmonicity</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>1</af:dimensions> + <af:signal>Harmonic</af:signal> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + <af:level>perceptual</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Similarity"> + <af:source>Queen Mary, University of London</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>time</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Similarity</af:feature> + <dc:description>Return a distance matrix for similarity between the input audio channels</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralvariance"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>libXtract</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralVariance"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicChangeDetectionFunction"> + <af:tag>Tonality</af:tag> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TonalChangeDetectionFunction"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>MIRToolbox</af:computedIn> + <dc:description>the flux of the tonal centroid</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralFluxOnsetDetectionFunction"> + <af:computedIn>MIRToolbox</af:computedIn> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:tag>Rhythm</af:tag> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>Use peaks of spectral flux to detect onsets</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StereoSpectrumSources"> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>Marsyas</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>StereoSpectrumSources estimates the number of sources placed into different stereo positions.</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StereoSpectrumFeatures"/> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioWaveform"> + <af:computation>Windowing</af:computation> + <af:computation>Sum, Weighted Sum</af:computation> + <af:computation>Histogram</af:computation> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>temporal</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>multi-dimensional</af:dimensionality> + <af:computedIn>MPEG-7</af:computedIn> + <af:complexity>low</af:complexity> + <af:feature>MPEG7AudioWaveform</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:dimensions>2</af:dimensions> + <af:level>physical</af:level> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralVariation"> + <af:computation>Level Crossing Detector</af:computation> + <af:computation>Cross-Correlation</af:computation> <af:computation>Discrete Fourier Transform</af:computation> <af:computation>Windowing</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTrack2"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTrack"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatTracker"/> - <af:computedIn>SuperCollider</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>based on exhaustively testing particular template patterns against feature streams</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralDecrease"> - <af:computedIn>Yaafe</af:computedIn> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute spectral decrease accoding to [GP2004]_.</dc:description> - <dc:description>The spectral decrease is another representation of the decreasing rate, based on perceptual criteria.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchYin"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Pitch detection using the YIN algorithm</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimSAI"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AimSSI"/> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Stabilised auditory image</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralDissonance"> - <af:computedIn>PsySound3</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AutoCorrelation"> - <af:feature>Autocorrelation</af:feature> - <dc:description>Compute the generalized autocorrelation of input window</dc:description> - <dc:description>Extract the autocorrelation of an audio signal</dc:description> - <dc:description>Compute autocorrelation coefficients *ac* on each frames.</dc:description> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralSpread"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralDeviation"/> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralVariation"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:dimensionality>one-dimensional</af:dimensionality> + <af:appdomain>music information retrieval</af:appdomain> + <af:computedIn>MPEG-7</af:computedIn> + <af:complexity>medium</af:complexity> + <af:feature>MPEG7HarmonicSpectralVariation</af:feature> + <af:temporalscale>intraframe</af:temporalscale> + <af:level>perceptual</af:level> + <af:dimensions>1</af:dimensions> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralDecrease"> + <af:FrameBased>y</af:FrameBased> + <af:Dimensions>1</af:Dimensions> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicSpectralSpread"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:computedIn>cuidado</af:computedIn> + <af:feature>Harmonic Spectral decrease</af:feature> + <af:typeOfFeature>Harmonic Feature</af:typeOfFeature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoteRepresentationofChordEstimate"> + <af:source>Matthias Mauch</af:source> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Sparse</af:output> + <af:computedIn>Vamp</af:computedIn> + <af:feature>Note Representation of Chord Estimate (Chordino)</af:feature> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BarkCoefficients"> + <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Barkcoefficients"/> <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Autocorrelationfft"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:domain>frequency</af:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:output>Dense</af:output> <af:computedIn>Vamp</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <af:computedIn>Yaafe</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:computedIn>sMIRk</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Oddevenratio"> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AbsMax"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Calculate the maximum absolute value for each observationsignal (per slice).</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Nonzerocount"> - <af:feature>Non-zero count</af:feature> - <dc:description>Extract the number of non-zero elements in an input spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:computedIn>libXtract</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ModifiedKullbackLieblerOnsetDetectionFunction"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KullbackLieblerOnsetDetectionFunction"/> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Modified Kullback-Liebler onset detection function.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Cepstrum"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Feature transform that compute cepstrum coefficients of input feature frames. (use DCT II)</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralAverageDeviation"> - <af:feature>Spectral Average Deviation</af:feature> - <dc:description>Extract the average deviation of an audio spectrum</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Spectralaveragedeviation"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/OBSIR"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Compute log of :class:OBSI ratio between consecutive octave.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Attack"> - <af:tag>Timbre</af:tag> - <dc:description>estimates the beginning of the attack phase of a note by locating the local minimum before the maximum corresponding to the onset</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdfs:comment>These can have start time *and end time*</rdfs:comment> - <af:computedIn>MIRToolbox</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/KeyDetector"> - <af:feature>Key Detector</af:feature> - <dc:description>Estimate the key of the music</dc:description> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LocalTuning"> - <af:feature>Local Tuning (Tuning)</af:feature> - <af:source>Matthias Mauch</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicPitchClassProfile"> - <af:feature>HPCP</af:feature> - <dc:description>Return the instantaneous evolution of HPCP (Harmonic Pitch Class Profile) of a signal.</dc:description> - <af:source>Music Technology Group, Universitat Pompeu Fabra</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Energy"> - <af:computedIn>Yaafe</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <af:computedIn>CLAM</af:computedIn> - <af:tag>Spectral</af:tag> - <af:tag>Audio</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>the squared sum of spectral power distribution values</dc:description> - <dc:description>compute the Energy of the input observations into one column*/</dc:description> - <dc:description>the squared sum of audio samples amplitudes</dc:description> - <dc:description>Compute energy as root mean square of an audio Frame.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Lowestvalue"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LowestValue"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HistogramIntegrator"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Feature transform that compute histogram of input values</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioSpectrumBasis"> - <af:temporalscale>interframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>MPEG7AudioSpectrumBasis</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>environmental sound recognition</af:appdomain> - <af:domain>eigendomain</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MPEG-7</af:computedIn> - <af:dimensions>parameterized</af:dimensions> - <af:computation>Regression</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Normalization</af:computation> - <af:computation>Discrete Fourier Transform</af:computation> - <af:computation>Logarithm</af:computation> - <af:computation>Independent Component Analysis</af:computation> - <af:computation>Singular Value Decomposition</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MIDI"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Pitch</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>estimates MIDI note value based on segmentation and pitch detection</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DistancefromFirstChannel"> - <af:feature>Distance from First Channel (Similarity)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>time</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AubioYin"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Pitch detection using the YIN algorithm</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Chordino"> - <af:feature>Chordino</af:feature> - <dc:description>Chordino provides a simple chord transcription based on NNLS Chroma (as in the NNLS Chroma plugin). Chord profiles given by the user in the file chord.dict are used to calculate frame-wise chord similarities. A simple (non-state-of-the-art!) algorithm smoothes these to provide a chord transcription using a standard HMM/Viterbi approach.</dc:description> - <af:source>Matthias Mauch</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SlopeIntegrator"> - <af:computedIn>Yaafe</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Feature transform that compute the slope of input feature over the given number of frames.</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/TimbralWidth"> - <af:computedIn>PsySound3</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoteOnsets"> - <af:feature>Note Onsets (Note Onset Detector)</af:feature> - <af:source>Queen Mary, University of London</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NoteOnset"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Sparse</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Mode"> - <af:computedIn>MIRToolbox</af:computedIn> - <af:tag>Tonality</af:tag> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Major vs. Minor, calculated as the strength difference between the best major and best minor key candidates</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PeakPicker"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Peak picking utilities function</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/RootMeanSquare"> - <af:name>Root Mean Square</af:name> + <af:feature>Bark Coefficients</af:feature> + <dc:description>Extract bark coefficients from an audio spectrum</dc:description> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicEnergy"> + <af:feature>Harmonic Energy</af:feature> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> + <af:computedIn>TimbreToolbox</af:computedIn> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <af:signal>Harmonic</af:signal> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/StrongestFrequencyViaZeroCrossings"> + <af:name>Strongest Frequency Via Zero Crossings</af:name> + <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> <af:computedIn>jMIR</af:computedIn> - <af:computedIn>sMIRk</af:computedIn> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>A measure of the power of a signal.</dc:description> - <dc:description>Rms energy of realvec</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchProfile"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>high</af:complexity> - <af:feature>PitchProfile</af:feature> - <af:level>perceptual</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>12</af:dimensions> - <af:computation>Sum, Weighted Sum</af:computation> - <af:computation>Windowing</af:computation> - <af:computation>Root Mean Square</af:computation> - <af:computation>Spectral binning</af:computation> - <af:computation>Constant Q Transform</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AverageDeviation"> - <af:feature>Average Deviation</af:feature> - <dc:description>Extract the average deviation of a range of values</dc:description> - <af:source>libxtract by Jamie Bullock (plugin by Chris Cannam)</af:source> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Averagedeviation"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - <af:output>Dense</af:output> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/DaubechiesWaveletCoefficientHistogram"> - <af:temporalscale>intraframe</af:temporalscale> - <af:complexity>medium</af:complexity> - <af:feature>DaubechiesWaveletCoefficientHistogram</af:feature> - <af:level>physical</af:level> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:appdomain>music information retrieval</af:appdomain> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:dimensions>28</af:dimensions> - <af:computation>Windowing</af:computation> - <af:computation>Spectral binning</af:computation> - <af:computation>Discrete Wavelet Transform</af:computation> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Deviation"> - <af:computedIn>Marsyas</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Standard Deviation of each row of observations</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/NNLSChroma"> - <af:feature>NNLS Chroma</af:feature> - <dc:description>This plugin provides a number of features derived from a DFT-based log-frequency amplitude spectrum: some variants of the log-frequency spectrum, including a semitone spectrum derived from approximate transcription using the NNLS algorithm; and based on this semitone spectrum, different chroma features.</dc:description> - <af:source>Matthias Mauch</af:source> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <af:domain>frequency</af:domain> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>Vamp</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/FilterbankMel"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Mel frequency filter bank coefficients. Set filter bank coefficients to Mel frequency bands</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Autocorrelationfft"> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AutoCorrelation"/> - <af:computedIn>libXtract</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularity"> - <af:tag>Timbre</af:tag> - <dc:description>The degree of variation of the successive peaks of the spectrum</dc:description> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityj"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityI"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IrregularityII"/> - <af:similarTo rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/Irregularityk"/> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <af:computedIn>MIRToolbox</af:computedIn> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchFftYin"> - <af:computedIn>aubio</af:computedIn> - <rdfs:subClassOf rdf:resource="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AudioFeature"/> - <dc:description>Pitch detection using a spectral implementation of the YIN algorithm</dc:description> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <dc:description>The strongest frequency component of a signal, in Hz, found via the number of zero-crossings.</dc:description> </rdf:Description> </rdf:RDF>
--- a/fca/fcaDotGen.py Mon Apr 01 21:26:45 2013 +0100 +++ b/fca/fcaDotGen.py Tue Apr 02 15:33:18 2013 +0100 @@ -53,14 +53,15 @@ columns = [] matrix = [] - cat = ["appdomain", "complexity", "domain", "level", "temporalscale", "dimensions"] + #cat = ["appdomain", "complexity", "domain", "level", "temporalscale", "dimensions"] + cat = ["output", "domain", "level", "temporalscale", "dimensionality", "model"] catdict = {} for nm in cat: catdict[nm] = [] for ns, value in graph.namespaces(): - if ns == 'local': + if ns == 'af': local = value for it in getFeaturesByTool(name): @@ -100,7 +101,8 @@ columns = [] matrix = [] - cat = ["domain", "level", "temporalscale", "dimensions", "output", "tag"] + #cat = ["domain", "level", "temporalscale", "dimensions", "output", "tag"] + cat = ["output", "domain", "level", "temporalscale", "dimensionality", "model"] catdict = {} for nm in cat:
--- a/fca/run.py Mon Apr 01 21:26:45 2013 +0100 +++ b/fca/run.py Tue Apr 02 15:33:18 2013 +0100 @@ -4,6 +4,8 @@ rdfdir = basedir + 'rdf/' fcadir = basedir + 'fcadata/' +execfile(basedir + 'fca/fcaDotGen.py') + for name in os.listdir(rdfdir): if fnmatch.fnmatch(name, '*.rdf'): constructMatrix( name.replace('af-', '').replace('.rdf', ''), fcadir ) \ No newline at end of file
--- a/fcadata/CLAM.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/CLAM.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,9 +1,12 @@ B -22 -27 +29 +11 Coefficients (Mel-Frequency Cepstral Coefficients) +Log Attack Time +Log-Attack Time +MFCC Marsyas - Batch Feature Extract - Centroid Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients Marsyas - Batch Feature Extract - Spectral Flatness Measure @@ -17,60 +20,55 @@ Spectral Rolloff Spectral Slope Spectral Spread +Spectral centroid +Spectral slope SpectralCentroid SpectralFlatness SpectralRolloff SpectralSlope +Spread +Temporal Centroid Variance Zero Crossing Rate Zero Crossings ZeroCrossingRate -appdomain-fingerprinting -appdomain-several -complexity-high -complexity-low -complexity-medium -computation-Discrete Cosine Transform -computation-Discrete Fourier Transform -computation-Logarithm -computation-Mean -computation-Peak Detection -computation-Polynomial Root Finding -computation-Regression -computation-Spectral binning -computation-Windowing -dimensions-1 -dimensions-4 -dimensions-parameterized +dimensionality-multi-dimensional +dimensionality-one-dimensional domain-cepstral domain-frequency domain-temporal domain-time level-perceptual level-physical -tag-Audio -tag-Spectral -tag-Timbre +model-psychoacoustic +output-Dense temporalscale-intraframe -........................... -........................... -........................... -........................... -........................... -........................... -..................X....X... -........................... -.XX..XXX...X.X..XXX.X.X.XXX -........................... -........................... -........................... -........................... -........................... -.X.X..XXX..X.XX...X.XX..X.X -X...X.XXX..X.X..X.X.XX..X.X -.X.X..X...X..XX...X.XX..XXX -.X.X..X..X...X.X..X...X.X.X -..................X....X... -........................... -........................... -.X.X........XXX....XX.XX.XX +........... +........... +........... +........... +........... +........... +........... +........... +........... +...X.....X. +........... +X.XX.X.XXXX +........... +........... +........... +........... +........... +........... +........... +.X.X.XX..XX +X..X.XX..XX +.X.X.XX..XX +X..X...X.XX +........... +........... +...X.....X. +........... +........... +.X..XX.X.XX
--- a/fcadata/CLAM.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/CLAM.dot Tue Apr 02 15:33:18 2013 +0100 @@ -2,111 +2,53 @@ node [ shape=record,margin="0.2,0.055" ]; edge[dir="none"]; c0 [label = "{|}"]; -c1 [label = "{computation-Spectral binning|ZeroCrossingRate}"]; -c2 [label = "{computation-Peak Detection|SpectralSlope}"]; -c3 [label = "{|}"]; -c4 [label = "{computation-Polynomial Root Fi...|SpectralRolloff}"]; -c5 [label = "{|}"]; -c6 [label = "{appdomain-fingerprinting|SpectralFlatness}"]; -c7 [label = "{|SpectralCentroid}"]; -c8 [label = "{|}"]; -c9 [label = "{dimensions-1|}"]; +c1 [label = "{domain-temporal|ZeroCrossingRate}"]; +c2 [label = "{|SpectralFlatness}"]; +c3 [label = "{|SpectralCentroid}"]; +c4 [label = "{dimensionality-one-dimensional|}"]; +c5 [label = "{level-perceptual|}"]; +c6 [label = "{domain-cepstral|MelscaleFrequencyCepstralCoeff...}"]; +c7 [label = "{|}"]; +c8 [label = "{|SpectralSlope}"]; +c9 [label = "{level-physical|}"]; c10 [label = "{|}"]; -c11 [label = "{complexity-low|}"]; -c12 [label = "{computation-Mean|}"]; -c13 [label = "{level-perceptual|}"]; -c14 [label = "{complexity-high|MelscaleFrequencyCepstralCoeff...}"]; -c15 [label = "{|}"]; -c16 [label = "{|}"]; -c17 [label = "{level-physical|}"]; -c18 [label = "{|}"]; -c19 [label = "{tag-Timbre|}"]; -c20 [label = "{dimensions-parameterized|}"]; -c21 [label = "{|}"]; -c22 [label = "{|}"]; -c23 [label = "{|}"]; -c24 [label = "{|}"]; -c25 [label = "{appdomain-several|}"]; -c26 [label = "{computation-Logarithm|}"]; -c27 [label = "{|}"]; -c28 [label = "{domain-time|}"]; -c29 [label = "{computation-Discrete Fourier T...|}"]; -c30 [label = "{computation-Windowing|}"]; -c31 [label = "{|Mean}"]; -c32 [label = "{tag-Audio|}"]; -c33 [label = "{domain-frequency|}"]; -c34 [label = "{|Coefficients (Mel-Frequency Ce...}"]; +c11 [label = "{dimensionality-multi-dimension...|}"]; +c12 [label = "{|}"]; +c13 [label = "{domain-time|}"]; +c14 [label = "{|}"]; +c15 [label = "{temporalscale-intraframe|}"]; +c16 [label = "{domain-frequency|Mean}"]; +c17 [label = "{output-Dense|}"]; +c18 [label = "{|Coefficients (Mel-Frequency Ce...}"]; c1 -> c0 c2 -> c0 -c3 -> c1 -c3 -> c2 -c4 -> c0 -c5 -> c1 -c5 -> c4 +c3 -> c0 +c4 -> c1 +c4 -> c3 +c5 -> c2 +c5 -> c3 c6 -> c0 -c7 -> c0 -c8 -> c4 -c8 -> c7 -c9 -> c5 +c7 -> c1 +c7 -> c6 +c8 -> c6 +c9 -> c7 c9 -> c8 c10 -> c2 -c10 -> c8 -c11 -> c3 -c11 -> c9 +c10 -> c6 +c11 -> c8 c11 -> c10 -c12 -> c6 -c12 -> c7 -c13 -> c8 +c12 -> c5 +c12 -> c10 +c13 -> c4 +c13 -> c7 c13 -> c12 -c14 -> c0 -c15 -> c1 +c14 -> c11 +c14 -> c12 +c15 -> c9 +c15 -> c13 c15 -> c14 -c16 -> c2 c16 -> c14 -c17 -> c3 c17 -> c15 c17 -> c16 -c18 -> c4 -c18 -> c14 -c19 -> c5 -c19 -> c15 -c19 -> c18 -c20 -> c6 -c20 -> c14 -c21 -> c7 -c21 -> c14 -c22 -> c8 -c22 -> c18 -c22 -> c21 -c23 -> c9 -c23 -> c19 -c23 -> c22 -c24 -> c10 -c24 -> c16 -c24 -> c22 -c25 -> c11 -c25 -> c17 -c25 -> c23 -c25 -> c24 -c26 -> c12 -c26 -> c20 -c26 -> c21 -c27 -> c13 -c27 -> c22 -c27 -> c26 -c28 -> c23 -c28 -> c27 -c29 -> c24 -c29 -> c27 -c30 -> c25 -c30 -> c28 -c30 -> c29 -c31 -> c0 -c32 -> c1 -c32 -> c31 -c33 -> c29 -c33 -> c31 -c34 -> c30 -c34 -> c32 -c34 -> c33 +c18 -> c17 }
--- a/fcadata/MIRToolbox.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/MIRToolbox.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,14 +1,17 @@ B -18 -37 +22 +13 +Attack +Attack Slope BeatSpectrum Chromagram Chromagram (NNLS Chroma) Coefficients (Mel-Frequency Cepstral Coefficients) Inharmonicity Key (Key Detector) +MFCC Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients Marsyas - Batch Feature Extract - Spectral Rolloff Marsyas - Batch Feature Extract - Zero Crossings @@ -17,32 +20,13 @@ Pitch Spectral Rolloff SpectralRolloff +Tempo (Aubio Beat Tracker) Tempo (Tempo and Beat Tracker) Zero Crossing Rate Zero Crossings ZeroCrossingRate -appdomain-music information retrieval -appdomain-several -complexity-high -complexity-low -complexity-medium -computation-Autocorrelation -computation-Cross-Correlation -computation-Discrete Cosine Transform -computation-Discrete Fourier Transform -computation-Logarithm -computation-Low-pass Filter -computation-Median -computation-Polynomial Root Finding -computation-Regression -computation-Root Mean Square -computation-Spectral binning -computation-Sum, Weighted Sum -computation-Windowing -computation-Zero-/Level Crossing Detector -dimensions-1 -dimensions-12 -dimensions-parameterized +dimensionality-multi-dimensional +dimensionality-one-dimensional domain-cepstral domain-frequency domain-modulation frequency @@ -50,29 +34,29 @@ domain-time level-perceptual level-physical -tag-Audio -tag-Pitch -tag-Rhythm -tag-Spectral -tag-Timbre -tag-Tonality +model-psychoacoustic +output-Dense temporalscale-interframe temporalscale-intraframe -X.X..XX.XXX......X...X..X..X...X...X. -X...X...XX....X..X..X..X...X......X.X -..................................... -..................................... -X...XX.....X.....XXX...X...X..X.....X -..................................... -..................................... -..................................... -..................................... -..................................... -.XX....XXX...X...X...XXX..X.X...XX..X -.X.X.X..........XX.X...X...X..X.....X -..................................... -.X.X....X...X....X.X...X..XX....XX..X -..................................... -..................................... -..................................... -.X.X...........X.X.X.....XX.XX...X..X +............. +............. +X...X..X...X. +X..X...X..X.X +............. +............. +.X.X...X..X.X +............. +............. +............. +............. +............. +............. +X.XX..X.XXX.X +.X.X...X....X +............. +.X.X..XX..X.X +............. +............. +............. +............. +.X...XX.X.X.X
--- a/fcadata/MIRToolbox.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/MIRToolbox.dot Tue Apr 02 15:33:18 2013 +0100 @@ -2,116 +2,74 @@ node [ shape=record,margin="0.2,0.055" ]; edge[dir="none"]; c0 [label = "{|}"]; -c1 [label = "{computation-Spectral binning|ZeroCrossingRate}"]; -c2 [label = "{computation-Polynomial Root Fi...|SpectralRolloff}"]; +c1 [label = "{domain-temporal|ZeroCrossingRate}"]; +c2 [label = "{|SpectralRolloff}"]; c3 [label = "{|}"]; -c4 [label = "{computation-Sum, Weighted Sum|Pitch}"]; -c5 [label = "{|}"]; -c6 [label = "{complexity-low|}"]; -c7 [label = "{computation-Discrete Cosine Tr...|MelscaleFrequencyCepstralCoeff...}"]; -c8 [label = "{level-physical|}"]; -c9 [label = "{tag-Spectral|}"]; -c10 [label = "{domain-time|}"]; -c11 [label = "{|}"]; -c12 [label = "{appdomain-several|}"]; -c13 [label = "{computation-Median|Inharmonicity}"]; -c14 [label = "{tag-Pitch|}"]; +c4 [label = "{domain-cepstral|MelscaleFrequencyCepstralCoeff...}"]; +c5 [label = "{level-physical|}"]; +c6 [label = "{|}"]; +c7 [label = "{domain-time|}"]; +c8 [label = "{|Inharmonicity}"]; +c9 [label = "{|}"]; +c10 [label = "{|Pitch}"]; +c11 [label = "{dimensionality-one-dimensional|}"]; +c12 [label = "{|Chromagram}"]; +c13 [label = "{|}"]; +c14 [label = "{|}"]; c15 [label = "{|}"]; -c16 [label = "{dimensions-1|}"]; -c17 [label = "{computation-Root Mean Square|Chromagram}"]; -c18 [label = "{|}"]; -c19 [label = "{|}"]; -c20 [label = "{|}"]; -c21 [label = "{complexity-medium|}"]; -c22 [label = "{|}"]; -c23 [label = "{domain-frequency|}"]; -c24 [label = "{temporalscale-intraframe|}"]; -c25 [label = "{computation-Cross-Correlation|BeatSpectrum}"]; -c26 [label = "{complexity-high|}"]; -c27 [label = "{|}"]; -c28 [label = "{computation-Autocorrelation|}"]; -c29 [label = "{|}"]; -c30 [label = "{|}"]; -c31 [label = "{computation-Logarithm|}"]; -c32 [label = "{computation-Discrete Fourier T...|}"]; -c33 [label = "{appdomain-music information re...|}"]; -c34 [label = "{level-perceptual|}"]; -c35 [label = "{computation-Windowing|}"]; -c36 [label = "{|Chromagram (NNLS Chroma)}"]; +c16 [label = "{|}"]; +c17 [label = "{output-Dense|}"]; +c18 [label = "{domain-frequency|}"]; +c19 [label = "{temporalscale-intraframe|}"]; +c20 [label = "{domain-modulation frequency|BeatSpectrum}"]; +c21 [label = "{|}"]; +c22 [label = "{dimensionality-multi-dimension...|}"]; +c23 [label = "{level-perceptual|}"]; +c24 [label = "{|Attack}"]; c1 -> c0 c2 -> c0 c3 -> c1 c3 -> c2 c4 -> c0 -c5 -> c2 +c5 -> c1 c5 -> c4 -c6 -> c3 -c6 -> c5 -c7 -> c0 -c8 -> c1 -c8 -> c7 -c9 -> c2 -c9 -> c7 -c10 -> c3 +c6 -> c2 +c6 -> c4 +c7 -> c3 +c7 -> c5 +c7 -> c6 +c8 -> c2 +c9 -> c3 +c9 -> c8 c10 -> c8 -c10 -> c9 -c11 -> c5 c11 -> c9 -c12 -> c6 -c12 -> c10 -c12 -> c11 -c13 -> c0 -c14 -> c4 -c14 -> c13 -c15 -> c5 +c11 -> c10 +c12 -> c0 +c13 -> c4 +c13 -> c12 +c14 -> c8 +c14 -> c12 +c15 -> c10 c15 -> c14 c16 -> c6 -c16 -> c15 -c17 -> c0 -c18 -> c2 -c18 -> c17 -c19 -> c7 +c16 -> c13 +c16 -> c14 +c17 -> c7 +c17 -> c9 +c17 -> c16 +c18 -> c15 +c18 -> c16 +c19 -> c11 c19 -> c17 -c20 -> c9 -c20 -> c18 -c20 -> c19 -c21 -> c13 -c21 -> c17 -c22 -> c15 -c22 -> c18 +c19 -> c18 +c20 -> c0 +c21 -> c12 +c21 -> c20 +c22 -> c13 c22 -> c21 -c23 -> c11 -c23 -> c20 -c23 -> c22 -c24 -> c12 -c24 -> c16 +c23 -> c15 +c23 -> c21 +c24 -> c19 +c24 -> c22 c24 -> c23 -c25 -> c0 -c26 -> c7 -c26 -> c25 -c27 -> c13 -c27 -> c25 -c28 -> c14 -c28 -> c27 -c29 -> c17 -c29 -> c25 -c30 -> c18 -c30 -> c29 -c31 -> c19 -c31 -> c26 -c31 -> c29 -c32 -> c20 -c32 -> c30 -c32 -> c31 -c33 -> c21 -c33 -> c27 -c33 -> c29 -c34 -> c22 -c34 -> c28 -c34 -> c30 -c34 -> c33 -c35 -> c24 -c35 -> c32 -c35 -> c34 -c36 -> c35 }
--- a/fcadata/Marsyas.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/Marsyas.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,7 +1,7 @@ B -25 -37 +28 +13 Autocorrelation Average Magnitude Difference Function @@ -10,6 +10,7 @@ Kurtosis LinearPredictionCepstralCoefficients LinearPredictiveCoding +MFCC Marsyas - Batch Feature Extract - Centroid Marsyas - Batch Feature Extract - Linear Prediction Cepstral Coefficients Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients @@ -21,6 +22,8 @@ Spectral Centroid Spectral Kurtosis Spectral Rolloff +Spectral centroid +Spectral kurtosis SpectralCentroid SpectralFlux SpectralRolloff @@ -28,31 +31,8 @@ Zero Crossing Rate Zero Crossings ZeroCrossingRate -appdomain-music information retrieval -appdomain-several -appdomain-speech recognition -complexity-high -complexity-low -complexity-medium -computation-Autocorrelation -computation-Autoregression (Linear Prediction Analysis) -computation-Band-pass Filter (Bank) -computation-Cepstral Recursion Formula -computation-Derivation, Difference -computation-Discrete Cosine Transform -computation-Discrete Fourier Transform -computation-Discrete Wavelet Transform -computation-Logarithm -computation-Low-pass Filter -computation-Mean -computation-Polynomial Root Finding -computation-Regression -computation-Root Mean Square -computation-Spectral binning -computation-Windowing -dimensions-1 -dimensions-6 -dimensions-parameterized +dimensionality-multi-dimensional +dimensionality-one-dimensional domain-cepstral domain-frequency domain-modulation frequency @@ -60,33 +40,35 @@ domain-time level-perceptual level-physical -tag-Audio -tag-Spectral -tag-Timbre +model-psychoacoustic +output-Dense temporalscale-interframe temporalscale-intraframe -..................................... -..................................... -X....XX......X.X...XXX.X...X..X....X. -..................................... -..................................... -..X..X.XXX...........X..XX...X.X....X -..X.X..XX...X........X..X.X....X....X -..................................... -..................................... -..................................... -..................................... -..................................... -..........................X.....X.... -..................................... -.X.X.......XX.X...X..X..XXX..X.X.XX.X -..................................... -..................................... -..................................... -.X..X.......X.X.X.X..XX...X..XX..X..X -.X..X.....X.X......X.XX...X....X....X -.X..X.......X....X...XX...X..XX..XX.X -.............................X....... -..................................... -..................................... -.X..X...............XXX.....XX.XX.X.X +............. +............. +X...X..X...X. +............. +............. +X.X...X.X.X.X +X..X....X...X +............. +............. +............. +............. +............. +............. +...X......X.. +............. +X.XX..X.XXX.X +............. +............. +............. +............. +............. +.X.X..XX..X.X +.X.X....X...X +.X.X..XX..X.X +......X...X.. +............. +............. +.X...XX.X.X.X
--- a/fcadata/Marsyas.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/Marsyas.dot Tue Apr 02 15:33:18 2013 +0100 @@ -3,53 +3,31 @@ edge[dir="none"]; c0 [label = "{|}"]; c1 [label = "{domain-temporal|ZeroCrossingRate}"]; -c2 [label = "{computation-Polynomial Root Fi...|SpectralRolloff}"]; +c2 [label = "{|SpectralFlux}"]; c3 [label = "{|}"]; -c4 [label = "{computation-Derivation, Differ...|SpectralFlux}"]; +c4 [label = "{|SpectralCentroid}"]; c5 [label = "{|}"]; -c6 [label = "{computation-Mean|SpectralCentroid}"]; -c7 [label = "{|}"]; -c8 [label = "{|}"]; +c6 [label = "{|}"]; +c7 [label = "{dimensionality-one-dimensional|}"]; +c8 [label = "{model-psychoacoustic|MelscaleFrequencyCepstralCoeff...}"]; c9 [label = "{|}"]; -c10 [label = "{dimensions-1|}"]; -c11 [label = "{complexity-high|MelscaleFrequencyCepstralCoeff...}"]; +c10 [label = "{|Mean}"]; +c11 [label = "{|LinearPredictiveCoding}"]; c12 [label = "{|}"]; c13 [label = "{|}"]; -c14 [label = "{tag-Timbre|}"]; -c15 [label = "{|}"]; +c14 [label = "{domain-frequency|}"]; +c15 [label = "{domain-cepstral|LinearPredictionCepstralCoeffi...}"]; c16 [label = "{|}"]; -c17 [label = "{computation-Logarithm|}"]; -c18 [label = "{tag-Spectral|}"]; -c19 [label = "{|}"]; +c17 [label = "{|}"]; +c18 [label = "{domain-time|Spectrum}"]; +c19 [label = "{output-Dense|}"]; c20 [label = "{|}"]; -c21 [label = "{appdomain-several|}"]; -c22 [label = "{|Mean}"]; -c23 [label = "{tag-Audio|}"]; -c24 [label = "{|LinearPredictiveCoding}"]; -c25 [label = "{|}"]; -c26 [label = "{|}"]; -c27 [label = "{|}"]; -c28 [label = "{complexity-low|}"]; -c29 [label = "{|}"]; -c30 [label = "{|}"]; -c31 [label = "{computation-Discrete Fourier T...|}"]; -c32 [label = "{domain-frequency|}"]; -c33 [label = "{computation-Cepstral Recursion...|LinearPredictionCepstralCoeffi...}"]; -c34 [label = "{domain-cepstral|}"]; -c35 [label = "{|}"]; -c36 [label = "{|}"]; -c37 [label = "{domain-time|Spectrum}"]; -c38 [label = "{appdomain-speech recognition|}"]; -c39 [label = "{dimensions-parameterized|}"]; -c40 [label = "{level-physical|}"]; -c41 [label = "{temporalscale-intraframe|}"]; -c42 [label = "{appdomain-music information re...|BeatHistogram}"]; -c43 [label = "{computation-Spectral binning|}"]; -c44 [label = "{computation-Root Mean Square|}"]; -c45 [label = "{level-perceptual|}"]; -c46 [label = "{complexity-medium|}"]; -c47 [label = "{computation-Windowing|}"]; -c48 [label = "{|Autocorrelation}"]; +c21 [label = "{level-physical|}"]; +c22 [label = "{temporalscale-intraframe|}"]; +c23 [label = "{domain-modulation frequency|BeatHistogram}"]; +c24 [label = "{level-perceptual|}"]; +c25 [label = "{dimensionality-multi-dimension...|}"]; +c26 [label = "{|Autocorrelation}"]; c1 -> c0 c2 -> c0 c3 -> c1 @@ -57,106 +35,50 @@ c4 -> c0 c5 -> c1 c5 -> c4 -c6 -> c0 -c7 -> c2 +c6 -> c2 +c6 -> c4 +c7 -> c3 +c7 -> c5 c7 -> c6 -c8 -> c3 -c8 -> c7 +c8 -> c0 c9 -> c4 -c9 -> c7 -c10 -> c5 -c10 -> c8 +c9 -> c8 c10 -> c9 -c11 -> c0 -c12 -> c1 +c11 -> c8 +c12 -> c2 c12 -> c11 -c13 -> c2 -c13 -> c11 -c14 -> c3 -c14 -> c12 +c13 -> c6 +c13 -> c9 +c13 -> c12 +c14 -> c10 c14 -> c13 -c15 -> c4 -c15 -> c11 -c16 -> c5 -c16 -> c12 +c15 -> c8 +c16 -> c1 c16 -> c15 -c17 -> c6 -c17 -> c11 -c18 -> c7 -c18 -> c13 +c17 -> c5 +c17 -> c9 +c17 -> c16 c18 -> c17 -c19 -> c8 -c19 -> c14 +c19 -> c10 c19 -> c18 -c20 -> c9 +c20 -> c11 c20 -> c15 -c20 -> c18 -c21 -> c10 +c21 -> c3 +c21 -> c12 c21 -> c16 -c21 -> c19 c21 -> c20 -c22 -> c0 -c23 -> c1 -c23 -> c22 -c24 -> c0 -c25 -> c4 -c25 -> c24 -c26 -> c5 +c22 -> c7 +c22 -> c13 +c22 -> c17 +c22 -> c21 +c23 -> c0 +c24 -> c4 +c24 -> c23 +c25 -> c20 +c25 -> c23 +c26 -> c14 +c26 -> c19 +c26 -> c22 +c26 -> c24 c26 -> c25 -c27 -> c9 -c27 -> c25 -c28 -> c10 -c28 -> c26 -c28 -> c27 -c29 -> c11 -c29 -> c24 -c30 -> c15 -c30 -> c25 -c30 -> c29 -c31 -> c20 -c31 -> c27 -c31 -> c30 -c32 -> c22 -c32 -> c31 -c33 -> c0 -c34 -> c11 -c34 -> c33 -c35 -> c12 -c35 -> c34 -c36 -> c19 -c36 -> c35 -c37 -> c36 -c38 -> c24 -c38 -> c33 -c39 -> c29 -c39 -> c34 -c39 -> c38 -c40 -> c16 -c40 -> c26 -c40 -> c30 -c40 -> c35 -c40 -> c39 -c41 -> c21 -c41 -> c28 -c41 -> c31 -c41 -> c36 -c41 -> c40 -c42 -> c0 -c43 -> c1 -c43 -> c42 -c44 -> c4 -c44 -> c42 -c45 -> c7 -c45 -> c42 -c46 -> c33 -c46 -> c42 -c47 -> c41 -c47 -> c43 -c47 -> c44 -c47 -> c45 -c47 -> c46 -c48 -> c23 -c48 -> c32 -c48 -> c37 -c48 -> c47 }
--- a/fcadata/PsySound3.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/PsySound3.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,20 +1,15 @@ B 2 -11 +6 Loudness Sharpness -appdomain-several -complexity-medium -computation-(Non-) Linear Weighting Function -computation-Discrete Fourier Transform -computation-Mean -computation-Regression -computation-Windowing -dimensions-1 +dimensionality-one-dimensional domain-frequency level-perceptual +model-psychoacoustic +output-Dense temporalscale-intraframe -........X.. -XXXXXXXXXXX +.X..X. +XXXX.X
--- a/fcadata/PsySound3.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/PsySound3.dot Tue Apr 02 15:33:18 2013 +0100 @@ -1,7 +1,12 @@ digraph Lat{ node [ shape=record,margin="0.2,0.055" ]; edge[dir="none"]; -c0 [label = "{appdomain-several|Sharpness}"]; -c1 [label = "{domain-frequency|Loudness}"]; +c0 [label = "{|}"]; +c1 [label = "{dimensionality-one-dimensional|Sharpness}"]; +c2 [label = "{output-Dense|Loudness}"]; +c3 [label = "{domain-frequency|}"]; c1 -> c0 +c2 -> c0 +c3 -> c1 +c3 -> c2 }
--- a/fcadata/SuperCollider.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/SuperCollider.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,12 +1,13 @@ B -25 -33 +30 +11 Chromagram Chromagram (NNLS Chroma) Coefficients (Mel-Frequency Cepstral Coefficients) Loudness +MFCC Marsyas - Batch Feature Extract - Centroid Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients Marsyas - Batch Feature Extract - Spectral Flatness Measure @@ -17,72 +18,59 @@ Onset Detection Function (Tempo and Beat Tracker) Pitch Spectral Centroid +Spectral Crest Spectral Crest Measure Spectral Flatness Spectral Slope Spectral Spread +Spectral centroid +Spectral slope SpectralCentroid SpectralCrest SpectralFlatness SpectralSlope +Spread Zero Crossing Rate Zero Crossings ZeroCrossingRate -appdomain-fingerprinting -appdomain-music information retrieval -appdomain-several -complexity-high -complexity-low -complexity-medium -computation-Autocorrelation -computation-Discrete Cosine Transform -computation-Discrete Fourier Transform -computation-Logarithm -computation-Mean -computation-Peak Detection -computation-Regression -computation-Root Mean Square -computation-Spectral binning -computation-Sum, Weighted Sum -computation-Windowing -dimensions-1 -dimensions-12 -dimensions-4 -dimensions-parameterized +dimensionality-multi-dimensional +dimensionality-one-dimensional domain-cepstral domain-frequency domain-temporal domain-time level-perceptual level-physical -tag-Audio -tag-Pitch -tag-Spectral -tag-Timbre -tag-Tonality +model-psychoacoustic +output-Dense temporalscale-intraframe -.X...X..XX...X..X.X...X..X.....XX -................................. -................................. -......................X.......... -................................. -................................. -................................. -................................. -................................. -..XX...XXX..X...X...XXX.X.X..XX.X -................................. -................................. -..X.X.X........XXX....X..X..X...X -................................. -................................. -................................. -................................. -................................. -..X.X...XXX.X...XX....X.XX...X..X -X...X...XXX.X..XX...X.X..X......X -X....X..XXX.X...X...X.X.XX...X..X -..X.X...X..X....X..X..X...X..X..X -................................. -................................. -..X.X.........X.XX.....XX.XX..X.X +X..X..X..XX +........... +........... +...X.....X. +........... +........... +........... +........... +........... +........... +X.XX.X.XXXX +........... +........... +.X.X..X...X +........... +........... +........... +........... +........... +........... +........... +........... +.X.X.XX..XX +X..X..X..XX +X..X.XX..XX +X..X...X.XX +........... +........... +........... +.X..XX.X.XX
--- a/fcadata/SuperCollider.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/SuperCollider.dot Tue Apr 02 15:33:18 2013 +0100 @@ -2,152 +2,80 @@ node [ shape=record,margin="0.2,0.055" ]; edge[dir="none"]; c0 [label = "{|}"]; -c1 [label = "{computation-Spectral binning|ZeroCrossingRate}"]; -c2 [label = "{computation-Peak Detection|SpectralSlope}"]; -c3 [label = "{|}"]; -c4 [label = "{|SpectralFlatness}"]; -c5 [label = "{|SpectralCrest}"]; -c6 [label = "{appdomain-fingerprinting|}"]; -c7 [label = "{|SpectralCentroid}"]; -c8 [label = "{|}"]; +c1 [label = "{domain-temporal|ZeroCrossingRate}"]; +c2 [label = "{|SpectralFlatness}"]; +c3 [label = "{|SpectralCentroid}"]; +c4 [label = "{|}"]; +c5 [label = "{|}"]; +c6 [label = "{|Pitch}"]; +c7 [label = "{dimensionality-one-dimensional|}"]; +c8 [label = "{domain-cepstral|MelscaleFrequencyCepstralCoeff...}"]; c9 [label = "{|}"]; -c10 [label = "{|}"]; -c11 [label = "{|}"]; +c10 [label = "{|SpectralSlope}"]; +c11 [label = "{level-physical|}"]; c12 [label = "{|}"]; -c13 [label = "{computation-Mean|}"]; -c14 [label = "{computation-Autocorrelation|Pitch}"]; -c15 [label = "{computation-Sum, Weighted Sum|}"]; +c13 [label = "{|}"]; +c14 [label = "{domain-time|}"]; +c15 [label = "{|Chromagram}"]; c16 [label = "{|}"]; -c17 [label = "{dimensions-1|}"]; -c18 [label = "{|}"]; +c17 [label = "{level-perceptual|}"]; +c18 [label = "{dimensionality-multi-dimension...|}"]; c19 [label = "{|}"]; c20 [label = "{|}"]; c21 [label = "{|}"]; -c22 [label = "{complexity-low|}"]; -c23 [label = "{complexity-high|MelscaleFrequencyCepstralCoeff...}"]; -c24 [label = "{tag-Timbre|}"]; -c25 [label = "{|}"]; -c26 [label = "{level-physical|}"]; -c27 [label = "{|}"]; -c28 [label = "{dimensions-parameterized|}"]; -c29 [label = "{|}"]; -c30 [label = "{|}"]; -c31 [label = "{|}"]; -c32 [label = "{|}"]; -c33 [label = "{domain-time|}"]; -c34 [label = "{tag-Spectral|}"]; -c35 [label = "{computation-Regression|}"]; -c36 [label = "{|}"]; -c37 [label = "{appdomain-several|}"]; -c38 [label = "{appdomain-music information re...|Chromagram}"]; -c39 [label = "{complexity-medium|}"]; -c40 [label = "{|}"]; -c41 [label = "{level-perceptual|}"]; -c42 [label = "{computation-Logarithm|}"]; -c43 [label = "{computation-Discrete Fourier T...|}"]; -c44 [label = "{|}"]; -c45 [label = "{computation-Windowing|}"]; -c46 [label = "{domain-frequency|Loudness}"]; -c47 [label = "{|Chromagram (NNLS Chroma)}"]; +c22 [label = "{temporalscale-intraframe|}"]; +c23 [label = "{|Loudness}"]; +c24 [label = "{output-Dense|}"]; +c25 [label = "{domain-frequency|}"]; +c26 [label = "{|Chromagram (NNLS Chroma)}"]; c1 -> c0 c2 -> c0 -c3 -> c1 -c3 -> c2 -c4 -> c0 -c5 -> c0 -c6 -> c4 -c6 -> c5 -c7 -> c0 -c8 -> c1 -c8 -> c7 -c9 -> c2 -c9 -> c7 -c10 -> c4 -c10 -> c7 -c11 -> c5 -c11 -> c7 -c12 -> c9 -c12 -> c11 -c13 -> c6 -c13 -> c10 -c13 -> c11 -c14 -> c0 -c15 -> c5 -c15 -> c14 -c16 -> c7 -c16 -> c14 -c17 -> c8 +c3 -> c0 +c4 -> c1 +c4 -> c3 +c5 -> c2 +c5 -> c3 +c6 -> c3 +c7 -> c4 +c7 -> c6 +c8 -> c0 +c9 -> c1 +c9 -> c8 +c10 -> c8 +c11 -> c9 +c11 -> c10 +c12 -> c2 +c12 -> c8 +c13 -> c5 +c13 -> c12 +c14 -> c4 +c14 -> c9 +c14 -> c13 +c15 -> c2 +c16 -> c5 +c16 -> c15 +c17 -> c6 c17 -> c16 -c18 -> c9 -c18 -> c16 -c19 -> c3 -c19 -> c17 +c18 -> c10 +c18 -> c12 +c18 -> c15 +c19 -> c13 +c19 -> c16 c19 -> c18 c20 -> c11 -c20 -> c15 -c20 -> c16 -c21 -> c12 -c21 -> c18 -c21 -> c20 -c22 -> c19 +c20 -> c14 +c20 -> c19 +c21 -> c17 +c21 -> c19 +c22 -> c7 +c22 -> c20 c22 -> c21 -c23 -> c0 -c24 -> c1 +c23 -> c19 +c24 -> c20 c24 -> c23 -c25 -> c2 +c25 -> c21 c25 -> c23 -c26 -> c3 +c26 -> c22 c26 -> c24 c26 -> c25 -c27 -> c4 -c27 -> c23 -c28 -> c6 -c28 -> c27 -c29 -> c7 -c29 -> c23 -c30 -> c8 -c30 -> c24 -c30 -> c29 -c31 -> c9 -c31 -> c25 -c31 -> c29 -c32 -> c10 -c32 -> c27 -c32 -> c29 -c33 -> c30 -c33 -> c32 -c34 -> c31 -c34 -> c32 -c35 -> c13 -c35 -> c28 -c35 -> c32 -c36 -> c18 -c36 -> c31 -c37 -> c19 -c37 -> c26 -c37 -> c30 -c37 -> c36 -c38 -> c0 -c39 -> c4 -c39 -> c38 -c40 -> c13 -c40 -> c39 -c41 -> c20 -c41 -> c40 -c42 -> c35 -c42 -> c40 -c43 -> c12 -c43 -> c34 -c43 -> c42 -c44 -> c21 -c44 -> c36 -c44 -> c41 -c44 -> c43 -c45 -> c22 -c45 -> c33 -c45 -> c37 -c45 -> c44 -c46 -> c44 -c47 -> c45 -c47 -> c46 }
--- a/fcadata/Vamp.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/Vamp.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,9 +1,14 @@ B -122 -40 +139 +12 Adaptive Spectrogram +Aubio Beat Tracker +Aubio Note Tracker +Aubio Onset Detector +Aubio Pitch Detector +Aubio Silence Detector Autocorrelation Average Deviation Average Magnitude Difference Function @@ -15,6 +20,7 @@ Beat Count (Bar and Beat Tracker) Beat Spectra (Similarity) Beat Spectral Difference (Bar and Beat Tracker) +Beats (Aubio Beat Tracker) Beats (Bar and Beat Tracker) Beats (Tempo and Beat Tracker) Chord Estimate (Chordino) @@ -54,6 +60,7 @@ Lowest Value MELODIA - Melody Extraction MELODIA - Melody Extraction (intermediate steps) +MFCC Marsyas - Batch Feature Extract - Centroid Marsyas - Batch Feature Extract - Line Spectral Pairs Marsyas - Batch Feature Extract - Linear Prediction Cepstral Coefficients @@ -68,6 +75,7 @@ MelscaleFrequencyCepstralCoefficients NNLS Chroma Noisiness +Non-Silent Regions (Aubio Silence Detector) Non-zero count Note Onset Detector Note Onsets (Note Onset Detector) @@ -84,11 +92,14 @@ Salience Function (MELODIA - Melody Extraction (intermediate steps)) Segmenter Semitone Spectrum (NNLS Chroma) +Silence Test (Aubio Silence Detector) +Silent Regions (Aubio Silence Detector) Similarity Skewness Smoothed Detection Function (Note Onset Detector) Spectral Average Deviation Spectral Centroid +Spectral Crest Spectral Crest Measure Spectral Flatness Spectral Kurtosis @@ -100,14 +111,20 @@ Spectral Spread Spectral Standard Deviation Spectral Variance +Spectral centroid +Spectral kurtosis +Spectral skewness +Spectral slope SpectralCentroid SpectralCrest SpectralFlatness SpectralRolloff SpectralSlope Spectrum +Spread Standard Deviation Sum of Values +Tempo (Aubio Beat Tracker) Tempo (Tempo and Beat Tracker) Tempo and Beat Tracker Tonal Change @@ -125,165 +142,154 @@ Zero Crossing Rate Zero Crossings ZeroCrossingRate -appdomain-fingerprinting -appdomain-music information retrieval -appdomain-several -appdomain-speech recognition -complexity-high -complexity-low -complexity-medium -computation-Autocorrelation -computation-Autoregression (Linear Prediction Analysis) -computation-Band-pass Filter (Bank) -computation-Cepstral Recursion Formula -computation-Discrete Cosine Transform -computation-Discrete Fourier Transform -computation-Logarithm -computation-Mean -computation-Median -computation-Peak Detection -computation-Polynomial Root Finding -computation-Regression -computation-Root Mean Square -computation-Spectral binning -computation-Sum, Weighted Sum -computation-Windowing -computation-Zero-/Level Crossing Detector -dimensions-1 -dimensions-12 -dimensions-4 -dimensions-parameterized +dimensionality-multi-dimensional +dimensionality-one-dimensional domain-cepstral domain-frequency domain-temporal domain-time level-perceptual level-physical -tag-Audio -tag-Pitch -tag-Spectral -tag-Timbre -tag-Tonality +model-psychoacoustic +output-Dense +output-Sparse temporalscale-intraframe -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -.............................X.......... -........................................ -.X....X.....XX.....X..X..X...X..X.....XX -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -.X....XX.......X......XXX....X..X..X...X -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -...X..X.XXX...........X....XX..X.X.....X -........................................ -........................................ -........................................ -.............................X.......... -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -.............................X....X..... -........................................ -........................................ -..X.X......XXX....X...X....XXX.X.X..XX.X -........................................ -.............................X.......... -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -...............................X........ -........................................ -...............................X........ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -..X..X......XXX...X...X.X....X.XX...X..X -X....X......XXX...X..XX....X.X..X......X -X.....X.....XXX...X...X....X.X.XX...X..X -..X..X......X....X....X.X....X.XX...XX.X -..X..X......X...X.....X...X..X...X..X..X -...............................X........ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -.............................X.......... -........................................ -........................................ -........................................ -........................................ -........................................ -........................................ -.............................X.......... -.............................X....X..... -........................................ -........................................ -..X..X..............X.X.X.....XX.XX..X.X +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +...X........ +............ +X..X..X..X.X +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +.X.X..X..X.X +............ +............ +............ +............ +............ +............ +............ +X.X..X.X.X.X +............ +............ +............ +...X.....X.. +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +...X.....X.. +............ +............ +X.XX.X.XXX.X +............ +...X.....X.. +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +.....X....X. +............ +............ +............ +.....X...... +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +............ +.X.X.XX..X.X +X..X..X..X.X +X..X.XX..X.X +.X.X.XX..X.X +X..X...X.X.X +.....X...X.. +............ +............ +............ +............ +............ +............ +............ +............ +............ +...X.....X.. +............ +............ +............ +............ +............ +............ +...X........ +...X.....X.. +............ +............ +.X..XX.X.X.X
--- a/fcadata/Vamp.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/Vamp.dot Tue Apr 02 15:33:18 2013 +0100 @@ -2,214 +2,93 @@ node [ shape=record,margin="0.2,0.055" ]; edge[dir="none"]; c0 [label = "{|}"]; -c1 [label = "{computation-Spectral binning|ZeroCrossingRate}"]; -c2 [label = "{computation-Peak Detection|SpectralSlope}"]; -c3 [label = "{|}"]; -c4 [label = "{computation-Polynomial Root Fi...|SpectralRolloff}"]; +c1 [label = "{domain-temporal|ZeroCrossingRate}"]; +c2 [label = "{|SpectralFlatness}"]; +c3 [label = "{|SpectralCentroid}"]; +c4 [label = "{|}"]; c5 [label = "{|}"]; -c6 [label = "{|SpectralFlatness}"]; -c7 [label = "{computation-Sum, Weighted Sum|SpectralCrest}"]; -c8 [label = "{appdomain-fingerprinting|}"]; -c9 [label = "{|SpectralCentroid}"]; +c6 [label = "{output-Sparse|Segmenter}"]; +c7 [label = "{model-psychoacoustic|MelscaleFrequencyCepstralCoeff...}"]; +c8 [label = "{|SpectralSlope}"]; +c9 [label = "{|}"]; c10 [label = "{|}"]; -c11 [label = "{|}"]; +c11 [label = "{domain-cepstral|LinearPredictionCepstralCoeffi...}"]; c12 [label = "{|}"]; c13 [label = "{|}"]; -c14 [label = "{|}"]; +c14 [label = "{level-physical|}"]; c15 [label = "{|}"]; c16 [label = "{|}"]; -c17 [label = "{|}"]; -c18 [label = "{|}"]; -c19 [label = "{complexity-low|}"]; -c20 [label = "{computation-Mean|}"]; -c21 [label = "{complexity-high|MelscaleFrequencyCepstralCoeff...}"]; +c17 [label = "{|Spectrum}"]; +c18 [label = "{domain-time|Similarity}"]; +c19 [label = "{|Inharmonicity}"]; +c20 [label = "{dimensionality-one-dimensional|}"]; +c21 [label = "{|Chromagram}"]; c22 [label = "{|}"]; -c23 [label = "{|}"]; -c24 [label = "{|}"]; +c23 [label = "{dimensionality-multi-dimension...|}"]; +c24 [label = "{level-perceptual|}"]; c25 [label = "{|}"]; -c26 [label = "{tag-Timbre|}"]; -c27 [label = "{|}"]; -c28 [label = "{|}"]; -c29 [label = "{|}"]; -c30 [label = "{|}"]; -c31 [label = "{|}"]; -c32 [label = "{|}"]; -c33 [label = "{appdomain-several|}"]; -c34 [label = "{|}"]; -c35 [label = "{|}"]; -c36 [label = "{tag-Spectral|}"]; -c37 [label = "{computation-Regression|}"]; -c38 [label = "{|Mean}"]; -c39 [label = "{tag-Audio|}"]; -c40 [label = "{appdomain-speech recognition|LinearPredictionCepstralCoeffi...}"]; -c41 [label = "{|}"]; -c42 [label = "{domain-cepstral|}"]; -c43 [label = "{|}"]; -c44 [label = "{level-physical|}"]; -c45 [label = "{|}"]; -c46 [label = "{dimensions-parameterized|}"]; -c47 [label = "{|}"]; -c48 [label = "{domain-time|Segmenter}"]; -c49 [label = "{computation-Autocorrelation|Inharmonicity}"]; -c50 [label = "{|}"]; -c51 [label = "{dimensions-1|}"]; -c52 [label = "{computation-Root Mean Square|Chromagram}"]; -c53 [label = "{|}"]; -c54 [label = "{|}"]; -c55 [label = "{|}"]; -c56 [label = "{computation-Logarithm|}"]; -c57 [label = "{computation-Discrete Fourier T...|}"]; -c58 [label = "{appdomain-music information re...|}"]; -c59 [label = "{|}"]; -c60 [label = "{level-perceptual|}"]; -c61 [label = "{|}"]; -c62 [label = "{complexity-medium|}"]; -c63 [label = "{computation-Windowing|}"]; -c64 [label = "{domain-frequency|Chordino}"]; -c65 [label = "{|Adaptive Spectrogram}"]; +c26 [label = "{|Loudness}"]; +c27 [label = "{temporalscale-intraframe|}"]; +c28 [label = "{output-Dense|}"]; +c29 [label = "{domain-frequency|Chordino}"]; +c30 [label = "{|Adaptive Spectrogram}"]; c1 -> c0 c2 -> c0 -c3 -> c1 -c3 -> c2 -c4 -> c0 -c5 -> c1 -c5 -> c4 +c3 -> c0 +c4 -> c1 +c4 -> c3 +c5 -> c2 +c5 -> c3 c6 -> c0 c7 -> c0 -c8 -> c6 c8 -> c7 -c9 -> c0 -c10 -> c4 +c9 -> c2 +c9 -> c7 +c10 -> c5 c10 -> c9 -c11 -> c5 -c11 -> c10 -c12 -> c2 -c12 -> c10 -c13 -> c3 +c11 -> c7 +c12 -> c1 +c12 -> c11 +c13 -> c8 c13 -> c11 -c13 -> c12 -c14 -> c6 -c14 -> c9 -c15 -> c10 -c15 -> c14 -c16 -> c7 -c16 -> c9 -c17 -> c10 +c14 -> c12 +c14 -> c13 +c15 -> c9 +c15 -> c11 +c16 -> c4 +c16 -> c10 +c16 -> c12 +c16 -> c15 c17 -> c16 -c18 -> c12 +c18 -> c6 c18 -> c17 -c19 -> c13 -c19 -> c18 -c20 -> c8 -c20 -> c14 -c20 -> c16 -c21 -> c0 -c22 -> c1 +c19 -> c3 +c20 -> c4 +c20 -> c19 +c21 -> c2 +c22 -> c8 +c22 -> c9 c22 -> c21 -c23 -> c2 -c23 -> c21 -c24 -> c3 -c24 -> c22 -c24 -> c23 -c25 -> c4 -c25 -> c21 -c26 -> c5 -c26 -> c22 +c23 -> c13 +c23 -> c15 +c23 -> c22 +c24 -> c5 +c24 -> c19 +c24 -> c21 +c25 -> c10 +c25 -> c22 +c25 -> c24 c26 -> c25 -c27 -> c6 -c27 -> c21 -c28 -> c8 +c27 -> c14 +c27 -> c16 +c27 -> c20 +c27 -> c23 +c27 -> c25 +c28 -> c17 +c28 -> c26 c28 -> c27 -c29 -> c9 -c29 -> c21 -c30 -> c10 -c30 -> c25 +c29 -> c26 +c30 -> c18 +c30 -> c28 c30 -> c29 -c31 -> c11 -c31 -> c26 -c31 -> c30 -c32 -> c12 -c32 -> c23 -c32 -> c30 -c33 -> c13 -c33 -> c24 -c33 -> c31 -c33 -> c32 -c34 -> c14 -c34 -> c27 -c34 -> c29 -c35 -> c15 -c35 -> c30 -c35 -> c34 -c36 -> c32 -c36 -> c35 -c37 -> c20 -c37 -> c28 -c37 -> c34 -c38 -> c0 -c39 -> c1 -c39 -> c38 -c40 -> c0 -c41 -> c6 -c41 -> c40 -c42 -> c21 -c42 -> c40 -c43 -> c22 -c43 -> c42 -c44 -> c24 -c44 -> c43 -c45 -> c27 -c45 -> c41 -c45 -> c42 -c46 -> c28 -c46 -> c45 -c47 -> c31 -c47 -> c35 -c47 -> c43 -c47 -> c45 -c48 -> c47 -c49 -> c0 -c50 -> c10 -c50 -> c49 -c51 -> c11 -c51 -> c50 -c52 -> c0 -c53 -> c6 -c53 -> c52 -c54 -> c20 -c54 -> c53 -c55 -> c15 -c55 -> c17 -c55 -> c54 -c56 -> c37 -c56 -> c54 -c57 -> c18 -c57 -> c36 -c57 -> c55 -c57 -> c56 -c58 -> c49 -c58 -> c52 -c59 -> c53 -c59 -> c58 -c60 -> c50 -c60 -> c55 -c60 -> c59 -c61 -> c57 -c61 -> c60 -c62 -> c41 -c62 -> c59 -c63 -> c19 -c63 -> c33 -c63 -> c44 -c63 -> c46 -c63 -> c47 -c63 -> c51 -c63 -> c61 -c63 -> c62 -c64 -> c38 -c64 -> c61 -c65 -> c39 -c65 -> c48 -c65 -> c63 -c65 -> c64 }
--- a/fcadata/Yaafe.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/Yaafe.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,22 +1,25 @@ B -21 -33 +24 +11 Autocorrelation Coefficients (Mel-Frequency Cepstral Coefficients) LineSpectralFrequencies LinearPredictiveCoding Loudness +MFCC Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients Marsyas - Batch Feature Extract - Spectral Flatness Measure Marsyas - Batch Feature Extract - Spectral Rolloff Marsyas - Batch Feature Extract - Zero Crossings Mel-Frequency Cepstral Coefficients MelscaleFrequencyCepstralCoefficients +Spectral Decrease Spectral Flatness Spectral Rolloff Spectral Slope +Spectral slope SpectralFlatness SpectralFlux SpectralRolloff @@ -24,57 +27,38 @@ Zero Crossing Rate Zero Crossings ZeroCrossingRate -appdomain-fingerprinting -appdomain-several -appdomain-speech recognition -complexity-high -complexity-low -complexity-medium -computation-Autoregression (Linear Prediction Analysis) -computation-Band-pass Filter (Bank) -computation-Derivation, Difference -computation-Discrete Cosine Transform -computation-Discrete Fourier Transform -computation-Logarithm -computation-Mean -computation-Peak Detection -computation-Percentile -computation-Polynomial Root Finding -computation-Regression -computation-Root Mean Square -computation-Spectral binning -computation-Windowing -dimensions-1 -dimensions-4 -dimensions-parameterized +dimensionality-multi-dimensional +dimensionality-one-dimensional domain-cepstral domain-frequency domain-temporal domain-time level-perceptual level-physical -tag-Audio -tag-Spectral -tag-Timbre +model-psychoacoustic +output-Dense temporalscale-intraframe -................................. -................................. -.X...XX.......X....X..X.X...X...X -..X.X.XX..X........X..X.X...X...X -........................X........ -................................. -................................. -................................. -................................. -................................. -.X.X.....XXX....X..X..XXX.X.X.XXX -................................. -................................. -................................. -X....X....XXX...X..X..X.X.XX..X.X -.X..X...X.X......X.XX...X...X...X -.X..X.....X....X...XX...X.XX..XXX -.X..X.....X..X.....X.X..X...X.X.X -................................. -................................. -.X..X.............XXX....XX.XX.XX +........... +........... +X..X...X..X +X..X...X..X +...X.....X. +........... +........... +........... +........... +........... +........... +X.XX.X.XXXX +........... +........... +........... +........... +........... +X..X.XX..XX +.X.X...X..X +.X.X.XX..XX +X..X...X.XX +........... +........... +.X..XX.X.XX
--- a/fcadata/Yaafe.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/Yaafe.dot Tue Apr 02 15:33:18 2013 +0100 @@ -2,175 +2,92 @@ node [ shape=record,margin="0.2,0.055" ]; edge[dir="none"]; c0 [label = "{|}"]; -c1 [label = "{computation-Spectral binning|ZeroCrossingRate}"]; -c2 [label = "{computation-Peak Detection|SpectralSlope}"]; -c3 [label = "{computation-Polynomial Root Fi...|SpectralRolloff}"]; -c4 [label = "{|}"]; +c1 [label = "{domain-temporal|ZeroCrossingRate}"]; +c2 [label = "{|SpectralRolloff}"]; +c3 [label = "{|}"]; +c4 [label = "{|SpectralFlux}"]; c5 [label = "{|}"]; -c6 [label = "{computation-Derivation, Differ...|SpectralFlux}"]; -c7 [label = "{|}"]; -c8 [label = "{|}"]; -c9 [label = "{|}"]; -c10 [label = "{|}"]; -c11 [label = "{dimensions-1|}"]; -c12 [label = "{|}"]; +c6 [label = "{|}"]; +c7 [label = "{dimensionality-one-dimensional|}"]; +c8 [label = "{|SpectralFlatness}"]; +c9 [label = "{level-perceptual|}"]; +c10 [label = "{domain-cepstral|MelscaleFrequencyCepstralCoeff...}"]; +c11 [label = "{|}"]; +c12 [label = "{|SpectralSlope}"]; c13 [label = "{|}"]; -c14 [label = "{appdomain-fingerprinting|SpectralFlatness}"]; -c15 [label = "{level-perceptual|}"]; -c16 [label = "{complexity-high|MelscaleFrequencyCepstralCoeff...}"]; -c17 [label = "{|}"]; +c14 [label = "{|}"]; +c15 [label = "{|}"]; +c16 [label = "{|}"]; +c17 [label = "{domain-time|}"]; c18 [label = "{|}"]; c19 [label = "{|}"]; -c20 [label = "{tag-Timbre|}"]; -c21 [label = "{|}"]; -c22 [label = "{|}"]; +c20 [label = "{|Loudness}"]; +c21 [label = "{output-Dense|}"]; +c22 [label = "{|LineSpectralFrequencies}"]; c23 [label = "{|}"]; -c24 [label = "{computation-Logarithm|}"]; -c25 [label = "{|}"]; -c26 [label = "{domain-time|}"]; -c27 [label = "{tag-Spectral|}"]; -c28 [label = "{appdomain-speech recognition|LinearPredictiveCoding}"]; -c29 [label = "{|}"]; -c30 [label = "{|}"]; -c31 [label = "{|}"]; -c32 [label = "{complexity-low|}"]; -c33 [label = "{|}"]; -c34 [label = "{|}"]; -c35 [label = "{|}"]; -c36 [label = "{computation-Discrete Fourier T...|}"]; -c37 [label = "{computation-Percentile|LineSpectralFrequencies}"]; -c38 [label = "{complexity-medium|}"]; -c39 [label = "{|}"]; -c40 [label = "{|}"]; -c41 [label = "{|}"]; -c42 [label = "{|}"]; -c43 [label = "{appdomain-several|}"]; -c44 [label = "{computation-Autoregression (Li...|}"]; -c45 [label = "{|}"]; -c46 [label = "{|}"]; -c47 [label = "{level-physical|}"]; -c48 [label = "{dimensions-parameterized|}"]; -c49 [label = "{|}"]; -c50 [label = "{computation-Windowing|}"]; -c51 [label = "{domain-frequency|Loudness}"]; -c52 [label = "{|Autocorrelation}"]; +c24 [label = "{level-physical|}"]; +c25 [label = "{dimensionality-multi-dimension...|}"]; +c26 [label = "{|}"]; +c27 [label = "{temporalscale-intraframe|}"]; +c28 [label = "{domain-frequency|}"]; +c29 [label = "{|Autocorrelation}"]; c1 -> c0 c2 -> c0 -c3 -> c0 -c4 -> c1 -c4 -> c3 -c5 -> c2 -c5 -> c3 -c6 -> c0 -c7 -> c1 +c3 -> c1 +c3 -> c2 +c4 -> c0 +c5 -> c1 +c5 -> c4 +c6 -> c2 +c6 -> c4 +c7 -> c3 +c7 -> c5 c7 -> c6 -c8 -> c2 -c8 -> c6 -c9 -> c7 +c8 -> c0 +c9 -> c2 c9 -> c8 -c10 -> c3 -c10 -> c6 -c11 -> c4 -c11 -> c7 +c10 -> c0 +c11 -> c1 c11 -> c10 -c12 -> c5 -c12 -> c8 c12 -> c10 -c13 -> c9 c13 -> c11 c13 -> c12 -c14 -> c0 -c15 -> c3 +c14 -> c8 +c14 -> c10 +c15 -> c12 c15 -> c14 -c16 -> c0 -c17 -> c1 +c16 -> c9 +c16 -> c14 +c17 -> c3 +c17 -> c11 c17 -> c16 -c18 -> c2 +c18 -> c15 c18 -> c16 -c19 -> c3 -c19 -> c16 -c20 -> c4 -c20 -> c17 -c20 -> c19 -c21 -> c5 -c21 -> c18 +c19 -> c13 +c19 -> c17 +c19 -> c18 +c20 -> c18 c21 -> c19 -c22 -> c8 -c22 -> c18 -c23 -> c12 -c23 -> c21 +c21 -> c20 +c22 -> c12 +c23 -> c4 c23 -> c22 -c24 -> c14 -c24 -> c16 +c24 -> c5 +c24 -> c13 +c24 -> c23 c25 -> c15 -c25 -> c19 -c25 -> c24 -c26 -> c20 +c25 -> c22 +c26 -> c6 +c26 -> c18 +c26 -> c23 c26 -> c25 -c27 -> c21 -c27 -> c25 -c28 -> c0 -c29 -> c8 +c27 -> c7 +c27 -> c19 +c27 -> c24 +c27 -> c26 +c28 -> c20 +c28 -> c26 +c29 -> c21 +c29 -> c27 c29 -> c28 -c30 -> c9 -c30 -> c29 -c31 -> c12 -c31 -> c29 -c32 -> c13 -c32 -> c30 -c32 -> c31 -c33 -> c16 -c33 -> c28 -c34 -> c22 -c34 -> c29 -c34 -> c33 -c35 -> c24 -c35 -> c33 -c36 -> c23 -c36 -> c27 -c36 -> c31 -c36 -> c34 -c36 -> c35 -c37 -> c0 -c38 -> c14 -c38 -> c37 -c39 -> c16 -c39 -> c37 -c40 -> c22 -c40 -> c39 -c41 -> c9 -c41 -> c17 -c41 -> c40 -c42 -> c23 -c42 -> c40 -c43 -> c13 -c43 -> c20 -c43 -> c41 -c43 -> c42 -c44 -> c28 -c44 -> c37 -c45 -> c33 -c45 -> c39 -c45 -> c44 -c46 -> c34 -c46 -> c40 -c46 -> c45 -c47 -> c30 -c47 -> c41 -c47 -> c46 -c48 -> c35 -c48 -> c38 -c48 -> c45 -c49 -> c36 -c49 -> c42 -c49 -> c46 -c49 -> c48 -c50 -> c26 -c50 -> c32 -c50 -> c43 -c50 -> c47 -c50 -> c49 -c51 -> c49 -c52 -> c50 -c52 -> c51 }
--- a/fcadata/aubio.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/aubio.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,10 +1,11 @@ B -22 -27 +30 +10 Coefficients (Mel-Frequency Cepstral Coefficients) Kurtosis +MFCC Marsyas - Batch Feature Extract - Centroid Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients Marsyas - Batch Feature Extract - Spectral Rolloff @@ -15,62 +16,60 @@ Pitch Skewness Spectral Centroid +Spectral Decrease Spectral Kurtosis Spectral Rolloff Spectral Skewness Spectral Slope Spectral Spread +Spectral centroid +Spectral kurtosis +Spectral skewness +Spectral slope SpectralCentroid SpectralFlux SpectralRolloff SpectralSlope +Spread +Tempo (Aubio Beat Tracker) Tempo (Tempo and Beat Tracker) -appdomain-several -complexity-high -complexity-low -computation-Autocorrelation -computation-Derivation, Difference -computation-Discrete Cosine Transform -computation-Discrete Fourier Transform -computation-Logarithm -computation-Mean -computation-Peak Detection -computation-Polynomial Root Finding -computation-Regression -computation-Root Mean Square -computation-Sum, Weighted Sum -computation-Windowing -dimensions-1 -dimensions-4 -dimensions-parameterized +dimensionality-multi-dimensional +dimensionality-one-dimensional domain-cepstral domain-frequency domain-time level-perceptual level-physical -tag-Pitch -tag-Spectral -tag-Timbre +model-psychoacoustic +output-Dense temporalscale-intraframe -........................... -........................... -........................... -........................... -........................... -........................... -XX...XXX...X..X..XXXX.X.XXX -........................... -........................... -X.XX.........XXX...X.X.X..X -........................... -........................... -........................... -........................... -........................... -........................... -........................... -X.X...XXX..X..XX...XXX..X.X -X.X.X.X.....X.XX...X..X...X -X.X...X...X...XX...XXX..XXX -X.X...X..X....X.X..X..X.X.X -........................... +.......... +.......... +.......... +.......... +.......... +.......... +.......... +X.XXX.XXXX +.......... +.......... +.X.X.X...X +.......... +.......... +.......... +.......... +.......... +.......... +.......... +.......... +.......... +.......... +.......... +.......... +.X.XXX..XX +.X.X..X..X +.X.XXX..XX +X..X..X.XX +.......... +.......... +..........
--- a/fcadata/aubio.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/aubio.dot Tue Apr 02 15:33:18 2013 +0100 @@ -2,70 +2,32 @@ node [ shape=record,margin="0.2,0.055" ]; edge[dir="none"]; c0 [label = "{|}"]; -c1 [label = "{computation-Peak Detection|SpectralSlope}"]; -c2 [label = "{computation-Polynomial Root Fi...|SpectralRolloff}"]; -c3 [label = "{computation-Derivation, Differ...|SpectralFlux}"]; -c4 [label = "{|}"]; -c5 [label = "{computation-Mean|SpectralCentroid}"]; -c6 [label = "{|}"]; -c7 [label = "{|}"]; -c8 [label = "{|}"]; -c9 [label = "{|}"]; -c10 [label = "{computation-Autocorrelation|Pitch}"]; -c11 [label = "{level-perceptual|}"]; -c12 [label = "{dimensions-1|}"]; -c13 [label = "{complexity-low|}"]; -c14 [label = "{complexity-high|MelscaleFrequencyCepstralCoeff...}"]; -c15 [label = "{|}"]; -c16 [label = "{tag-Timbre|}"]; -c17 [label = "{level-physical|}"]; -c18 [label = "{computation-Logarithm|}"]; -c19 [label = "{domain-time|}"]; -c20 [label = "{tag-Spectral|}"]; -c21 [label = "{computation-Discrete Fourier T...|}"]; -c22 [label = "{appdomain-several|}"]; -c23 [label = "{|Coefficients (Mel-Frequency Ce...}"]; +c1 [label = "{|SpectralFlux}"]; +c2 [label = "{|SpectralCentroid}"]; +c3 [label = "{level-perceptual|Pitch}"]; +c4 [label = "{dimensionality-one-dimensional|}"]; +c5 [label = "{domain-cepstral|MelscaleFrequencyCepstralCoeff...}"]; +c6 [label = "{dimensionality-multi-dimension...|SpectralSlope}"]; +c7 [label = "{level-physical|}"]; +c8 [label = "{domain-time|}"]; +c9 [label = "{output-Dense|}"]; +c10 [label = "{domain-frequency|}"]; +c11 [label = "{|Coefficients (Mel-Frequency Ce...}"]; c1 -> c0 c2 -> c0 -c3 -> c0 +c3 -> c2 c4 -> c1 c4 -> c3 c5 -> c0 -c6 -> c2 c6 -> c5 c7 -> c1 c7 -> c6 -c8 -> c3 -c8 -> c6 -c9 -> c4 -c9 -> c7 +c8 -> c2 +c8 -> c5 +c9 -> c6 c9 -> c8 -c10 -> c0 -c11 -> c6 +c10 -> c4 +c10 -> c7 +c10 -> c9 c11 -> c10 -c12 -> c8 -c12 -> c11 -c13 -> c9 -c13 -> c12 -c14 -> c0 -c15 -> c1 -c15 -> c14 -c16 -> c2 -c16 -> c14 -c17 -> c4 -c17 -> c15 -c18 -> c5 -c18 -> c14 -c19 -> c6 -c19 -> c16 -c19 -> c18 -c20 -> c7 -c20 -> c15 -c20 -> c19 -c21 -> c9 -c21 -> c17 -c21 -> c20 -c22 -> c13 -c22 -> c21 -c23 -> c22 }
--- a/fcadata/base.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/base.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,20 +1,26 @@ B -40 -21 +47 +14 +Attack +AttackSlope AutoCorrelation AverageMagnitudeDifferenceFunction BeatHistogram Chromagram Crest CrossCorrelation +EffectiveDuration Energy +FundamentalFrequency +HarmonicSpectralDeviation HarmonicSpectrum Inharmonicity Key LinearPredictionCepstralCoefficients LinearPredictiveCoding +LogAttackTime Loudness MagnitudeSpectrum Mean @@ -40,67 +46,68 @@ SpectralSpread Spectrum Tempo +TemporalCentroid Tonality Variance ZeroCrossingRate -appdomain-fingerprinting -appdomain-music information retrieval -appdomain-several -appdomain-speech recognition -complexity-high -complexity-low -complexity-medium -dimensions-1 -dimensions-12 -dimensions-4 -dimensions-6 -dimensions-parameterized -domain-cepstral -domain-frequency -domain-modulation frequency -domain-temporal -domain-time -level-perceptual -level-physical -temporalscale-interframe -temporalscale-intraframe -................X.... -................X.... -.X....X...X...X..X.X. -.X....X.X....X...X..X -..................... -..................... -..................... -.............X....... -.X....XX.....X...X..X -................X.... -...X..X....XX...X.X.X -...X.X.....X.X....X.X -.............X....... -..................... -.............X....... -..X.X......XXX..X.X.X -.............X....... -.............X....... -.............X....... -.............X....... -..X..X.X.....X...X..X -..................... -..................... -..................... -..X...XX.....X...X..X -..X..X.X.....X..XX..X -X....X.....X.X...X..X -..................... -X.....X....X.X..XX..X -..X..X.X.....X....X.X -.............X....... -..X..X.X.....X..XX..X -.............X....... -..X..X...X...X....X.X -.............X....... -................X.... -.............X..X.... -.............X....... -.............X....... -..X..X.X.......XX.X.X +Dense-output +Sparse-output +cepstral-domain +frequency-domain +interframe-temporalscale +intraframe-temporalscale +modulation-frequency-domain +multi-dimensional-dimensionality +one-dimensional-dimensionality +perceptual-level +physical-level +psychoacoustic-model +temporal-domain +time-domain +........X.X..X +........X.X..X +X....X.......X +X.......X.X..X +....X.XX.X.... +X..X.X.X.X.... +.............. +.............. +.............. +.............. +X............X +.............. +X..X.......... +X..X.X..XX.... +.X...........X +X.X..X.X..X... +...X.X.X..X... +.............. +X..X.......... +.............. +X..X.......... +X.X..X.X..XX.. +X..X.......... +X..X.......... +X..X.......... +X..X.......... +...X.X..XX.... +.............. +.............. +.............. +...X.X..XX.X.. +X..X.X..XX.... +X..X.X.X.X.... +.............. +X..X.X.X.X.... +...X.X..X.X... +X..X.......... +X..X.X..XX.... +X..X.......... +X..X.X.X..X... +X..X.......... +X............X +XX...........X +.............. +X..X.......... +X..X.......... +X....X..X.X..X
--- a/fcadata/base.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/base.dot Tue Apr 02 15:33:18 2013 +0100 @@ -2,247 +2,171 @@ node [ shape=record,margin="0.2,0.055" ]; edge[dir="none"]; c0 [label = "{|}"]; -c1 [label = "{domain-temporal|ZeroCrossingRate}"]; -c2 [label = "{dimensions-4|SpectralSlope}"]; +c1 [label = "{temporal-domain|ZeroCrossingRate}"]; +c2 [label = "{|Tempo}"]; c3 [label = "{|SpectralFlux}"]; c4 [label = "{|}"]; -c5 [label = "{|}"]; -c6 [label = "{|}"]; -c7 [label = "{|SpectralFlatness}"]; -c8 [label = "{|SpectralCrest}"]; -c9 [label = "{appdomain-fingerprinting|}"]; -c10 [label = "{|SpectralCentroid}"]; -c11 [label = "{|}"]; +c5 [label = "{|SpectralFlatness}"]; +c6 [label = "{|SpectralCentroid}"]; +c7 [label = "{|}"]; +c8 [label = "{|}"]; +c9 [label = "{|Sharpness}"]; +c10 [label = "{|MelscaleFrequencyCepstralCoeff...}"]; +c11 [label = "{|SpectralSlope}"]; c12 [label = "{|}"]; -c13 [label = "{|Sharpness}"]; -c14 [label = "{|Pitch}"]; -c15 [label = "{|}"]; -c16 [label = "{|}"]; +c13 [label = "{|}"]; +c14 [label = "{|}"]; +c15 [label = "{psychoacoustic-model|}"]; +c16 [label = "{|LinearPredictiveCoding}"]; c17 [label = "{|}"]; -c18 [label = "{|}"]; +c18 [label = "{cepstral-domain|LinearPredictionCepstralCoeffi...}"]; c19 [label = "{|}"]; c20 [label = "{|}"]; c21 [label = "{|}"]; c22 [label = "{|}"]; -c23 [label = "{complexity-high|MelscaleFrequencyCepstralCoeff...}"]; +c23 [label = "{|}"]; c24 [label = "{|}"]; -c25 [label = "{|}"]; -c26 [label = "{|}"]; -c27 [label = "{|}"]; +c25 [label = "{physical-level|}"]; +c26 [label = "{Sparse-output|Key}"]; +c27 [label = "{|Inharmonicity}"]; c28 [label = "{|}"]; -c29 [label = "{|}"]; +c29 [label = "{|Pitch}"]; c30 [label = "{|}"]; -c31 [label = "{|Tempo}"]; -c32 [label = "{|}"]; -c33 [label = "{appdomain-several|}"]; -c34 [label = "{|LinearPredictiveCoding}"]; +c31 [label = "{one-dimensional-dimensionality|}"]; +c32 [label = "{|Chromagram}"]; +c33 [label = "{|}"]; +c34 [label = "{|}"]; c35 [label = "{|}"]; c36 [label = "{|}"]; c37 [label = "{|}"]; c38 [label = "{|}"]; -c39 [label = "{complexity-low|}"]; +c39 [label = "{|}"]; c40 [label = "{|}"]; c41 [label = "{|}"]; -c42 [label = "{|}"]; -c43 [label = "{|LinearPredictionCepstralCoeffi...}"]; -c44 [label = "{|}"]; -c45 [label = "{domain-cepstral|}"]; +c42 [label = "{intraframe-temporalscale|}"]; +c43 [label = "{|HarmonicSpectrum}"]; +c44 [label = "{frequency-domain|}"]; +c45 [label = "{interframe-temporalscale|BeatHistogram}"]; c46 [label = "{|}"]; -c47 [label = "{|}"]; -c48 [label = "{|}"]; -c49 [label = "{appdomain-speech recognition|}"]; -c50 [label = "{|}"]; -c51 [label = "{level-physical|}"]; -c52 [label = "{dimensions-parameterized|}"]; -c53 [label = "{|Inharmonicity}"]; -c54 [label = "{|}"]; -c55 [label = "{|}"]; -c56 [label = "{|}"]; -c57 [label = "{dimensions-1|}"]; -c58 [label = "{dimensions-12|Chromagram}"]; -c59 [label = "{|}"]; -c60 [label = "{|}"]; -c61 [label = "{|}"]; -c62 [label = "{|}"]; -c63 [label = "{|}"]; -c64 [label = "{temporalscale-intraframe|}"]; -c65 [label = "{domain-frequency|HarmonicSpectrum}"]; -c66 [label = "{dimensions-6|BeatHistogram}"]; -c67 [label = "{appdomain-music information re...|}"]; -c68 [label = "{|}"]; -c69 [label = "{level-perceptual|}"]; -c70 [label = "{complexity-medium|}"]; -c71 [label = "{domain-time|AutoCorrelation}"]; -c72 [label = "{|Crest}"]; +c47 [label = "{multi-dimensional-dimensionali...|}"]; +c48 [label = "{perceptual-level|}"]; +c49 [label = "{|AutoCorrelation}"]; +c50 [label = "{time-domain|}"]; +c51 [label = "{Dense-output|}"]; +c52 [label = "{|Attack}"]; c1 -> c0 c2 -> c0 c3 -> c0 c4 -> c1 c4 -> c3 -c5 -> c2 -c5 -> c3 -c6 -> c4 -c6 -> c5 -c7 -> c0 -c8 -> c0 -c9 -> c7 -c9 -> c8 +c5 -> c0 +c6 -> c0 +c7 -> c1 +c7 -> c6 +c8 -> c5 +c8 -> c6 +c9 -> c0 c10 -> c0 -c11 -> c1 c11 -> c10 -c12 -> c7 +c12 -> c5 c12 -> c10 -c13 -> c0 -c14 -> c10 -c15 -> c3 -c15 -> c14 -c16 -> c4 +c13 -> c8 +c13 -> c12 +c14 -> c2 +c14 -> c13 +c15 -> c9 +c15 -> c10 c16 -> c11 -c16 -> c15 -c17 -> c5 -c17 -> c15 -c18 -> c6 -c18 -> c16 -c18 -> c17 -c19 -> c8 -c19 -> c14 -c20 -> c13 -c20 -> c14 -c21 -> c15 +c17 -> c3 +c17 -> c16 +c18 -> c10 +c19 -> c1 +c19 -> c18 +c20 -> c11 +c20 -> c18 +c21 -> c19 c21 -> c20 -c22 -> c16 -c22 -> c21 -c23 -> c0 -c24 -> c1 -c24 -> c23 -c25 -> c5 -c25 -> c23 -c26 -> c6 -c26 -> c24 -c26 -> c25 -c27 -> c7 -c27 -> c23 -c28 -> c10 -c28 -> c23 -c29 -> c11 -c29 -> c24 -c29 -> c28 -c30 -> c12 -c30 -> c27 -c30 -> c28 +c22 -> c12 +c22 -> c18 +c23 -> c7 +c23 -> c13 +c23 -> c19 +c23 -> c22 +c24 -> c16 +c24 -> c20 +c25 -> c4 +c25 -> c17 +c25 -> c21 +c25 -> c24 +c26 -> c2 +c27 -> c6 +c28 -> c7 +c28 -> c27 +c29 -> c9 +c29 -> c27 +c30 -> c3 +c30 -> c29 +c31 -> c4 +c31 -> c28 c31 -> c30 -c32 -> c17 -c32 -> c21 -c32 -> c25 -c32 -> c28 -c33 -> c18 -c33 -> c22 -c33 -> c26 -c33 -> c29 +c32 -> c5 +c33 -> c11 +c33 -> c12 c33 -> c32 -c34 -> c0 -c35 -> c5 -c35 -> c34 -c36 -> c6 +c34 -> c16 +c34 -> c33 +c35 -> c20 +c35 -> c22 +c35 -> c33 +c36 -> c24 +c36 -> c34 c36 -> c35 c37 -> c8 -c37 -> c34 -c38 -> c17 -c38 -> c19 -c38 -> c35 +c37 -> c27 +c37 -> c32 +c38 -> c29 c38 -> c37 -c39 -> c18 -c39 -> c36 -c39 -> c38 -c40 -> c23 +c39 -> c13 +c39 -> c33 +c39 -> c37 +c40 -> c15 +c40 -> c17 +c40 -> c30 c40 -> c34 -c41 -> c25 +c40 -> c38 +c40 -> c39 +c41 -> c21 +c41 -> c23 +c41 -> c28 c41 -> c35 -c41 -> c40 -c42 -> c9 -c42 -> c27 -c42 -> c37 +c41 -> c39 +c42 -> c25 +c42 -> c31 +c42 -> c36 c42 -> c40 -c43 -> c0 -c44 -> c7 +c42 -> c41 +c43 -> c14 +c43 -> c39 +c44 -> c40 c44 -> c43 -c45 -> c23 -c45 -> c43 -c46 -> c24 +c45 -> c0 +c46 -> c32 c46 -> c45 -c47 -> c27 -c47 -> c44 -c47 -> c45 -c48 -> c29 -c48 -> c30 +c47 -> c36 +c47 -> c46 +c48 -> c38 c48 -> c46 -c48 -> c47 -c49 -> c34 -c49 -> c43 -c50 -> c40 -c50 -> c45 +c49 -> c14 +c49 -> c23 +c50 -> c26 c50 -> c49 -c51 -> c26 -c51 -> c36 c51 -> c41 -c51 -> c46 -c51 -> c50 +c51 -> c43 +c51 -> c49 c52 -> c42 +c52 -> c44 c52 -> c47 +c52 -> c48 c52 -> c50 -c53 -> c0 -c54 -> c13 -c54 -> c53 -c55 -> c20 -c55 -> c54 -c56 -> c21 -c56 -> c55 -c57 -> c22 -c57 -> c56 -c58 -> c0 -c59 -> c53 -c59 -> c58 -c60 -> c7 -c60 -> c54 -c60 -> c59 -c61 -> c9 -c61 -> c12 -c61 -> c19 -c61 -> c55 -c61 -> c60 -c62 -> c30 -c62 -> c32 -c62 -> c38 -c62 -> c41 -c62 -> c42 -c62 -> c56 -c62 -> c61 -c63 -> c44 -c63 -> c60 -c64 -> c33 -c64 -> c39 -c64 -> c48 -c64 -> c51 -c64 -> c52 -c64 -> c57 -c64 -> c62 -c64 -> c63 -c65 -> c31 -c65 -> c62 -c66 -> c0 -c67 -> c59 -c67 -> c66 -c68 -> c60 -c68 -> c67 -c69 -> c61 -c69 -> c68 -c70 -> c63 -c70 -> c68 -c71 -> c31 -c71 -> c48 -c72 -> c64 -c72 -> c65 -c72 -> c69 -c72 -> c70 -c72 -> c71 +c52 -> c51 }
--- a/fcadata/comirva.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/comirva.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,28 +1,23 @@ B -4 -15 +5 +8 Coefficients (Mel-Frequency Cepstral Coefficients) +MFCC Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients Mel-Frequency Cepstral Coefficients MelscaleFrequencyCepstralCoefficients -appdomain-several -complexity-high -computation-Discrete Cosine Transform -computation-Discrete Fourier Transform -computation-Logarithm -computation-Regression -computation-Windowing -dimensions-parameterized +dimensionality-multi-dimensional domain-cepstral domain-frequency domain-time level-physical -tag-Spectral -tag-Timbre +model-psychoacoustic +output-Dense temporalscale-intraframe -............... -............... -............... -XXXXXXXXXXXXXXX +........ +........ +........ +........ +XXXXXXXX
--- a/fcadata/comirva.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/comirva.dot Tue Apr 02 15:33:18 2013 +0100 @@ -1,7 +1,7 @@ digraph Lat{ node [ shape=record,margin="0.2,0.055" ]; edge[dir="none"]; -c0 [label = "{appdomain-several|MelscaleFrequencyCepstralCoeff...}"]; +c0 [label = "{dimensionality-multi-dimension...|MelscaleFrequencyCepstralCoeff...}"]; c1 [label = "{|Coefficients (Mel-Frequency Ce...}"]; c1 -> c0 }
--- a/fcadata/jMIR.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/jMIR.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,11 +1,12 @@ B -17 -36 +19 +13 BeatHistogram Coefficients (Mel-Frequency Cepstral Coefficients) LinearPredictiveCoding +MFCC Marsyas - Batch Feature Extract - Centroid Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients Marsyas - Batch Feature Extract - Spectral Rolloff @@ -14,36 +15,15 @@ MelscaleFrequencyCepstralCoefficients Spectral Centroid Spectral Rolloff +Spectral centroid SpectralCentroid SpectralFlux SpectralRolloff Zero Crossing Rate Zero Crossings ZeroCrossingRate -appdomain-music information retrieval -appdomain-several -appdomain-speech recognition -complexity-high -complexity-low -complexity-medium -computation-Autocorrelation -computation-Autoregression (Linear Prediction Analysis) -computation-Band-pass Filter (Bank) -computation-Derivation, Difference -computation-Discrete Cosine Transform -computation-Discrete Fourier Transform -computation-Discrete Wavelet Transform -computation-Logarithm -computation-Low-pass Filter -computation-Mean -computation-Polynomial Root Finding -computation-Regression -computation-Root Mean Square -computation-Spectral binning -computation-Windowing -dimensions-1 -dimensions-6 -dimensions-parameterized +dimensionality-multi-dimensional +dimensionality-one-dimensional domain-cepstral domain-frequency domain-modulation frequency @@ -51,25 +31,26 @@ domain-time level-perceptual level-physical -tag-Audio -tag-Spectral -tag-Timbre +model-psychoacoustic +output-Dense temporalscale-interframe temporalscale-intraframe -X....XX.....X.X...XXX.X...X..X....X. -.................................... -..X.X..XX..X........X..X.X....X....X -.................................... -.................................... -.................................... -.................................... -.................................... -.X.X......XX.X...X..X..XXX..X.X.XX.X -.................................... -.................................... -.X..X......X.X.X.X..XX...X..XX..X..X -.X..X....X.X......X.XX...X....X....X -.X..X......X....X...XX...X..XX..XX.X -.................................... -.................................... -.X..X..............XXX.....XX.XX.X.X +X...X..X...X. +............. +X..X....X...X +............. +............. +............. +............. +............. +............. +X.XX..X.XXX.X +............. +............. +............. +.X.X..XX..X.X +.X.X....X...X +.X.X..XX..X.X +............. +............. +.X...XX.X.X.X
--- a/fcadata/jMIR.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/jMIR.dot Tue Apr 02 15:33:18 2013 +0100 @@ -3,42 +3,25 @@ edge[dir="none"]; c0 [label = "{|}"]; c1 [label = "{domain-temporal|ZeroCrossingRate}"]; -c2 [label = "{computation-Polynomial Root Fi...|SpectralRolloff}"]; +c2 [label = "{|SpectralFlux}"]; c3 [label = "{|}"]; -c4 [label = "{computation-Derivation, Differ...|SpectralFlux}"]; +c4 [label = "{|SpectralCentroid}"]; c5 [label = "{|}"]; -c6 [label = "{computation-Mean|SpectralCentroid}"]; -c7 [label = "{|}"]; -c8 [label = "{|}"]; +c6 [label = "{|}"]; +c7 [label = "{dimensionality-one-dimensional|}"]; +c8 [label = "{domain-cepstral|MelscaleFrequencyCepstralCoeff...}"]; c9 [label = "{|}"]; -c10 [label = "{dimensions-1|}"]; -c11 [label = "{complexity-high|MelscaleFrequencyCepstralCoeff...}"]; -c12 [label = "{|}"]; +c10 [label = "{|}"]; +c11 [label = "{domain-time|}"]; +c12 [label = "{|LinearPredictiveCoding}"]; c13 [label = "{|}"]; -c14 [label = "{tag-Timbre|}"]; -c15 [label = "{|}"]; -c16 [label = "{|}"]; -c17 [label = "{computation-Logarithm|}"]; -c18 [label = "{tag-Spectral|}"]; -c19 [label = "{domain-time|}"]; -c20 [label = "{|}"]; -c21 [label = "{appdomain-several|}"]; -c22 [label = "{appdomain-speech recognition|LinearPredictiveCoding}"]; -c23 [label = "{|}"]; -c24 [label = "{|}"]; -c25 [label = "{|}"]; -c26 [label = "{complexity-low|}"]; -c27 [label = "{dimensions-parameterized|}"]; -c28 [label = "{|}"]; -c29 [label = "{level-physical|}"]; -c30 [label = "{computation-Discrete Fourier T...|}"]; -c31 [label = "{temporalscale-intraframe|}"]; -c32 [label = "{appdomain-music information re...|BeatHistogram}"]; -c33 [label = "{computation-Spectral binning|}"]; -c34 [label = "{computation-Root Mean Square|}"]; -c35 [label = "{level-perceptual|}"]; -c36 [label = "{computation-Windowing|}"]; -c37 [label = "{|Coefficients (Mel-Frequency Ce...}"]; +c14 [label = "{level-physical|}"]; +c15 [label = "{domain-frequency|}"]; +c16 [label = "{temporalscale-intraframe|}"]; +c17 [label = "{domain-modulation frequency|BeatHistogram}"]; +c18 [label = "{level-perceptual|}"]; +c19 [label = "{dimensionality-multi-dimension...|}"]; +c20 [label = "{|Coefficients (Mel-Frequency Ce...}"]; c1 -> c0 c2 -> c0 c3 -> c1 @@ -46,79 +29,38 @@ c4 -> c0 c5 -> c1 c5 -> c4 -c6 -> c0 -c7 -> c2 +c6 -> c2 +c6 -> c4 +c7 -> c3 +c7 -> c5 c7 -> c6 -c8 -> c3 -c8 -> c7 -c9 -> c4 -c9 -> c7 -c10 -> c5 +c8 -> c0 +c9 -> c1 +c9 -> c8 +c10 -> c4 c10 -> c8 -c10 -> c9 -c11 -> c0 -c12 -> c1 -c12 -> c11 +c11 -> c5 +c11 -> c9 +c11 -> c10 +c12 -> c8 c13 -> c2 -c13 -> c11 +c13 -> c12 c14 -> c3 -c14 -> c12 +c14 -> c9 c14 -> c13 -c15 -> c4 -c15 -> c11 -c16 -> c5 -c16 -> c12 +c15 -> c6 +c15 -> c10 +c15 -> c13 +c16 -> c7 +c16 -> c11 +c16 -> c14 c16 -> c15 -c17 -> c6 -c17 -> c11 -c18 -> c7 -c18 -> c13 +c17 -> c0 +c18 -> c4 c18 -> c17 -c19 -> c8 -c19 -> c14 -c19 -> c18 -c20 -> c9 -c20 -> c15 +c19 -> c12 +c19 -> c17 +c20 -> c16 c20 -> c18 -c21 -> c10 -c21 -> c16 -c21 -> c19 -c21 -> c20 -c22 -> c0 -c23 -> c4 -c23 -> c22 -c24 -> c5 -c24 -> c23 -c25 -> c9 -c25 -> c23 -c26 -> c10 -c26 -> c24 -c26 -> c25 -c27 -> c11 -c27 -> c22 -c28 -> c15 -c28 -> c23 -c28 -> c27 -c29 -> c16 -c29 -> c24 -c29 -> c28 -c30 -> c20 -c30 -> c25 -c30 -> c28 -c31 -> c21 -c31 -> c26 -c31 -> c29 -c31 -> c30 -c32 -> c0 -c33 -> c1 -c33 -> c32 -c34 -> c4 -c34 -> c32 -c35 -> c7 -c35 -> c32 -c36 -> c31 -c36 -> c33 -c36 -> c34 -c36 -> c35 -c37 -> c36 +c20 -> c19 }
--- a/fcadata/libXtract.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/libXtract.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,7 +1,7 @@ B -40 -34 +46 +11 Autocorrelation Average Magnitude Difference Function @@ -11,6 +11,7 @@ LinearPredictionCepstralCoefficients LinearPredictiveCoding Loudness +MFCC Marsyas - Batch Feature Extract - Centroid Marsyas - Batch Feature Extract - Linear Prediction Cepstral Coefficients Marsyas - Batch Feature Extract - Mel-Frequency Cepstral Coefficients @@ -32,88 +33,76 @@ Spectral Skewness Spectral Slope Spectral Spread +Spectral centroid +Spectral kurtosis +Spectral skewness +Spectral slope SpectralCentroid SpectralFlatness SpectralFlux SpectralRolloff SpectralSlope Spectrum +Spread Tonality Variance Zero Crossing Rate Zero Crossings ZeroCrossingRate -appdomain-fingerprinting -appdomain-several -appdomain-speech recognition -complexity-high -complexity-low -complexity-medium -computation-(Non-) Linear Weighting Function -computation-Autoregression (Linear Prediction Analysis) -computation-Band-pass Filter (Bank) -computation-Cepstral Recursion Formula -computation-Derivation, Difference -computation-Discrete Cosine Transform -computation-Discrete Fourier Transform -computation-Logarithm -computation-Mean -computation-Peak Detection -computation-Polynomial Root Finding -computation-Regression -computation-Root Mean Square -computation-Spectral binning -computation-Windowing -dimensions-1 -dimensions-4 -dimensions-parameterized +dimensionality-multi-dimensional +dimensionality-one-dimensional domain-cepstral domain-frequency domain-temporal domain-time level-perceptual level-physical -tag-Audio -tag-Spectral -tag-Timbre +model-psychoacoustic +output-Dense temporalscale-intraframe -.................................. -.................................. -.................................. -.................................. -.................................. -..X..X.XXX..........X..XX..X.X...X -..X.X..XX...X.......X..X.X...X...X -.........................X........ -.................................. -.................................. -.................................. -.................................. -.................................. -.................................. -.........................X....X... -.................................. -.X.X.......XXX...X..X..XXX.X.X.XXX -.........................X........ -.................................. -.................................. -.X...XX.....X.X..X..XX...X..X....X -.................................. -.................................. -.................................. -.................................. -.................................. -.................................. -.................................. -.................................. -.X..X.......XXX..X..XX...X.XX..X.X -X....X......XXX..X..X..X.X.XX..X.X -.X..X.....X.X.....X.XX...X...X...X -.X..X.......X...X...XX...X.XX..XXX -.X..X.......X..X....X.X..X...X.X.X -...........................X...... -.........................X........ -.........................X....X... -.................................. -.................................. -.X..X..............XXX....XX.XX.XX +........... +........... +........... +........... +........... +X.X..X.X.XX +X..X...X..X +...X.....X. +........... +........... +........... +........... +........... +........... +........... +...X.....X. +........... +X.XX.X.XXXX +...X.....X. +........... +........... +.X.X..X.X.X +........... +........... +........... +........... +........... +........... +........... +........... +........... +........... +........... +........... +.X.X.XX..XX +X..X.XX..XX +.X.X...X..X +.X.X.XX..XX +X..X...X.XX +.....X...X. +........... +...X.....X. +...X.....X. +........... +........... +.X..XX.X.XX
--- a/fcadata/libXtract.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/libXtract.dot Tue Apr 02 15:33:18 2013 +0100 @@ -2,249 +2,131 @@ node [ shape=record,margin="0.2,0.055" ]; edge[dir="none"]; c0 [label = "{|}"]; -c1 [label = "{computation-Spectral binning|ZeroCrossingRate}"]; -c2 [label = "{computation-Peak Detection|SpectralSlope}"]; -c3 [label = "{computation-Polynomial Root Fi...|SpectralRolloff}"]; -c4 [label = "{|}"]; -c5 [label = "{computation-Derivation, Differ...|SpectralFlux}"]; +c1 [label = "{domain-temporal|ZeroCrossingRate}"]; +c2 [label = "{|SpectralFlux}"]; +c3 [label = "{|}"]; +c4 [label = "{|SpectralFlatness}"]; +c5 [label = "{|SpectralCentroid}"]; c6 [label = "{|}"]; c7 [label = "{|}"]; -c8 [label = "{|}"]; -c9 [label = "{appdomain-fingerprinting|SpectralFlatness}"]; -c10 [label = "{|SpectralCentroid}"]; -c11 [label = "{|}"]; -c12 [label = "{|}"]; -c13 [label = "{|}"]; -c14 [label = "{|}"]; +c8 [label = "{|Sharpness}"]; +c9 [label = "{|}"]; +c10 [label = "{|}"]; +c11 [label = "{dimensionality-one-dimensional|}"]; +c12 [label = "{level-perceptual|}"]; +c13 [label = "{|MelscaleFrequencyCepstralCoeff...}"]; +c14 [label = "{|SpectralSlope}"]; c15 [label = "{|}"]; c16 [label = "{|}"]; c17 [label = "{|}"]; c18 [label = "{|}"]; -c19 [label = "{|}"]; -c20 [label = "{computation-(Non-) Linear Weig...|Sharpness}"]; -c21 [label = "{|}"]; +c19 [label = "{model-psychoacoustic|}"]; +c20 [label = "{|Loudness}"]; +c21 [label = "{|LinearPredictiveCoding}"]; c22 [label = "{|}"]; c23 [label = "{|}"]; c24 [label = "{|}"]; -c25 [label = "{dimensions-1|}"]; -c26 [label = "{computation-Mean|}"]; -c27 [label = "{level-perceptual|}"]; -c28 [label = "{complexity-high|MelscaleFrequencyCepstralCoeff...}"]; +c25 [label = "{domain-frequency|}"]; +c26 [label = "{domain-cepstral|LinearPredictionCepstralCoeffi...}"]; +c27 [label = "{|}"]; +c28 [label = "{|}"]; c29 [label = "{|}"]; c30 [label = "{|}"]; c31 [label = "{|}"]; -c32 [label = "{tag-Timbre|}"]; -c33 [label = "{|}"]; +c32 [label = "{|}"]; +c33 [label = "{domain-time|Spectrum}"]; c34 [label = "{|}"]; -c35 [label = "{|}"]; +c35 [label = "{output-Dense|}"]; c36 [label = "{|}"]; -c37 [label = "{|}"]; -c38 [label = "{|}"]; -c39 [label = "{|}"]; -c40 [label = "{computation-Logarithm|}"]; -c41 [label = "{|}"]; -c42 [label = "{tag-Spectral|}"]; -c43 [label = "{|}"]; -c44 [label = "{|}"]; -c45 [label = "{appdomain-several|}"]; -c46 [label = "{computation-Regression|}"]; -c47 [label = "{|Mean}"]; -c48 [label = "{tag-Audio|}"]; -c49 [label = "{|LinearPredictiveCoding}"]; -c50 [label = "{|}"]; -c51 [label = "{|}"]; -c52 [label = "{|}"]; -c53 [label = "{complexity-low|}"]; -c54 [label = "{|}"]; -c55 [label = "{|}"]; -c56 [label = "{|}"]; -c57 [label = "{computation-Discrete Fourier T...|}"]; -c58 [label = "{domain-frequency|Loudness}"]; -c59 [label = "{computation-Cepstral Recursion...|LinearPredictionCepstralCoeffi...}"]; -c60 [label = "{|}"]; -c61 [label = "{complexity-medium|}"]; -c62 [label = "{domain-cepstral|}"]; -c63 [label = "{|}"]; -c64 [label = "{|}"]; -c65 [label = "{|}"]; -c66 [label = "{domain-time|Spectrum}"]; -c67 [label = "{appdomain-speech recognition|}"]; -c68 [label = "{|}"]; -c69 [label = "{level-physical|}"]; -c70 [label = "{dimensions-parameterized|}"]; -c71 [label = "{computation-Windowing|}"]; -c72 [label = "{|Autocorrelation}"]; +c37 [label = "{level-physical|}"]; +c38 [label = "{dimensionality-multi-dimension...|}"]; +c39 [label = "{temporalscale-intraframe|}"]; +c40 [label = "{|Autocorrelation}"]; c1 -> c0 c2 -> c0 -c3 -> c0 -c4 -> c1 -c4 -> c3 +c3 -> c1 +c3 -> c2 +c4 -> c0 c5 -> c0 c6 -> c1 c6 -> c5 -c7 -> c2 +c7 -> c4 c7 -> c5 -c8 -> c6 -c8 -> c7 -c9 -> c0 -c10 -> c0 +c8 -> c0 +c9 -> c5 +c9 -> c8 +c10 -> c2 +c10 -> c9 c11 -> c3 +c11 -> c6 c11 -> c10 -c12 -> c4 -c12 -> c11 -c13 -> c2 -c13 -> c11 -c14 -> c5 -c14 -> c11 -c15 -> c6 -c15 -> c12 -c15 -> c14 -c16 -> c7 -c16 -> c13 +c12 -> c7 +c12 -> c9 +c13 -> c0 +c14 -> c13 +c15 -> c4 +c15 -> c13 c16 -> c14 -c17 -> c8 +c16 -> c15 +c17 -> c7 c17 -> c15 -c17 -> c16 -c18 -> c9 -c18 -> c10 -c19 -> c11 -c19 -> c18 -c20 -> c0 -c21 -> c9 -c21 -> c20 -c22 -> c10 -c22 -> c20 -c23 -> c11 -c23 -> c22 -c24 -> c14 +c18 -> c16 +c18 -> c17 +c19 -> c8 +c19 -> c13 +c20 -> c18 +c21 -> c14 +c22 -> c2 +c22 -> c21 +c23 -> c16 +c23 -> c21 +c24 -> c10 +c24 -> c12 +c24 -> c18 +c24 -> c19 +c24 -> c22 c24 -> c23 -c25 -> c15 +c25 -> c20 c25 -> c24 -c26 -> c18 -c26 -> c21 -c26 -> c22 -c27 -> c19 -c27 -> c23 +c26 -> c13 +c27 -> c1 c27 -> c26 -c28 -> c0 -c29 -> c1 +c28 -> c14 +c28 -> c26 +c29 -> c27 c29 -> c28 -c30 -> c2 -c30 -> c28 -c31 -> c3 +c30 -> c15 +c30 -> c26 +c31 -> c16 c31 -> c28 -c32 -> c4 -c32 -> c29 -c32 -> c31 -c33 -> c7 -c33 -> c30 -c34 -> c8 +c31 -> c30 +c32 -> c6 +c32 -> c17 +c32 -> c27 +c32 -> c30 +c33 -> c32 +c34 -> c18 c34 -> c29 -c34 -> c33 -c35 -> c9 -c35 -> c28 -c36 -> c10 +c34 -> c31 +c34 -> c32 +c35 -> c20 +c35 -> c33 +c35 -> c34 +c36 -> c21 c36 -> c28 -c37 -> c11 -c37 -> c31 +c37 -> c3 +c37 -> c22 +c37 -> c29 c37 -> c36 -c38 -> c12 -c38 -> c32 -c38 -> c37 -c39 -> c13 -c39 -> c30 +c38 -> c23 +c38 -> c31 +c38 -> c36 +c39 -> c11 +c39 -> c24 +c39 -> c34 c39 -> c37 -c40 -> c18 +c39 -> c38 +c40 -> c25 c40 -> c35 -c40 -> c36 -c41 -> c19 -c41 -> c37 -c41 -> c40 -c42 -> c39 -c42 -> c41 -c43 -> c22 -c43 -> c36 -c44 -> c16 -c44 -> c24 -c44 -> c33 -c44 -> c39 -c44 -> c43 -c45 -> c17 -c45 -> c25 -c45 -> c34 -c45 -> c38 -c45 -> c44 -c46 -> c26 -c46 -> c40 -c46 -> c43 -c47 -> c0 -c48 -> c1 -c48 -> c47 -c49 -> c0 -c50 -> c7 -c50 -> c49 -c51 -> c8 -c51 -> c50 -c52 -> c16 -c52 -> c50 -c53 -> c17 -c53 -> c51 -c53 -> c52 -c54 -> c28 -c54 -> c49 -c55 -> c33 -c55 -> c50 -c55 -> c54 -c56 -> c35 -c56 -> c54 -c57 -> c27 -c57 -> c42 -c57 -> c44 -c57 -> c46 -c57 -> c52 -c57 -> c55 -c57 -> c56 -c58 -> c47 -c58 -> c57 -c59 -> c0 -c60 -> c9 -c60 -> c59 -c61 -> c21 -c61 -> c60 -c62 -> c28 -c62 -> c59 -c63 -> c29 -c63 -> c62 -c64 -> c35 -c64 -> c60 -c64 -> c62 -c65 -> c38 -c65 -> c41 -c65 -> c63 -c65 -> c64 -c66 -> c65 -c67 -> c49 -c67 -> c59 -c68 -> c54 -c68 -> c62 -c68 -> c67 -c69 -> c34 -c69 -> c51 -c69 -> c55 -c69 -> c63 -c69 -> c68 -c70 -> c56 -c70 -> c64 -c70 -> c68 -c71 -> c45 -c71 -> c53 -c71 -> c57 -c71 -> c61 -c71 -> c65 -c71 -> c69 -c71 -> c70 -c72 -> c48 -c72 -> c58 -c72 -> c66 -c72 -> c71 +c40 -> c39 }
--- a/fcadata/sMIRk.cxt Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/sMIRk.cxt Tue Apr 02 15:33:18 2013 +0100 @@ -1,7 +1,7 @@ B -13 -25 +14 +9 Autocorrelation LinearPredictiveCoding @@ -10,47 +10,33 @@ Marsyas - Batch Feature Extract - Zero Crossings Spectral Centroid Spectral Rolloff +Spectral centroid SpectralCentroid SpectralFlux SpectralRolloff Zero Crossing Rate Zero Crossings ZeroCrossingRate -appdomain-several -appdomain-speech recognition -complexity-low -computation-Autoregression (Linear Prediction Analysis) -computation-Band-pass Filter (Bank) -computation-Derivation, Difference -computation-Discrete Fourier Transform -computation-Logarithm -computation-Mean -computation-Polynomial Root Finding -computation-Regression -computation-Root Mean Square -computation-Spectral binning -computation-Windowing -dimensions-1 -dimensions-parameterized +dimensionality-multi-dimensional +dimensionality-one-dimensional domain-frequency domain-temporal domain-time level-perceptual level-physical -tag-Audio -tag-Spectral -tag-Timbre +output-Dense temporalscale-intraframe -......................... -.XXXX.X......X.XX...X...X -......................... -......................... -......................... -......................... -......................... -X.X...XXX.X..XX.X.XX..X.X -X.X..XX....X.XX.X...X...X -X.X...X..X...XX.X.XX..XXX -......................... -......................... -X.X.........XXX..XX.XX.XX +......... +X.X...X.X +......... +......... +......... +......... +......... +......... +.XX.XX.XX +.XX...X.X +.XX.XX.XX +......... +......... +.X.XX.XXX
--- a/fcadata/sMIRk.dot Mon Apr 01 21:26:45 2013 +0100 +++ b/fcadata/sMIRk.dot Tue Apr 02 15:33:18 2013 +0100 @@ -2,22 +2,19 @@ node [ shape=record,margin="0.2,0.055" ]; edge[dir="none"]; c0 [label = "{|}"]; -c1 [label = "{computation-Spectral binning|ZeroCrossingRate}"]; -c2 [label = "{computation-Polynomial Root Fi...|SpectralRolloff}"]; -c3 [label = "{tag-Timbre|}"]; -c4 [label = "{computation-Derivation, Differ...|SpectralFlux}"]; -c5 [label = "{|}"]; -c6 [label = "{computation-Logarithm|SpectralCentroid}"]; -c7 [label = "{level-perceptual|}"]; -c8 [label = "{domain-time|}"]; +c1 [label = "{domain-temporal|ZeroCrossingRate}"]; +c2 [label = "{|SpectralFlux}"]; +c3 [label = "{|}"]; +c4 [label = "{level-perceptual|SpectralCentroid}"]; +c5 [label = "{domain-time|}"]; +c6 [label = "{|}"]; +c7 [label = "{dimensionality-one-dimensional|}"]; +c8 [label = "{dimensionality-multi-dimension...|LinearPredictiveCoding}"]; c9 [label = "{|}"]; -c10 [label = "{appdomain-several|}"]; -c11 [label = "{appdomain-speech recognition|LinearPredictiveCoding}"]; -c12 [label = "{|}"]; -c13 [label = "{level-physical|}"]; -c14 [label = "{computation-Discrete Fourier T...|}"]; -c15 [label = "{complexity-low|}"]; -c16 [label = "{|Autocorrelation}"]; +c10 [label = "{level-physical|}"]; +c11 [label = "{domain-frequency|}"]; +c12 [label = "{temporalscale-intraframe|}"]; +c13 [label = "{|Autocorrelation}"]; c1 -> c0 c2 -> c0 c3 -> c1 @@ -25,25 +22,20 @@ c4 -> c0 c5 -> c1 c5 -> c4 -c6 -> c0 -c7 -> c2 +c6 -> c2 +c6 -> c4 +c7 -> c3 +c7 -> c5 c7 -> c6 -c8 -> c3 -c8 -> c7 -c9 -> c4 -c9 -> c7 -c10 -> c5 -c10 -> c8 +c8 -> c0 +c9 -> c2 +c9 -> c8 +c10 -> c3 c10 -> c9 -c11 -> c0 -c12 -> c4 +c11 -> c6 +c11 -> c9 +c12 -> c7 +c12 -> c10 c12 -> c11 -c13 -> c5 c13 -> c12 -c14 -> c9 -c14 -> c12 -c15 -> c10 -c15 -> c13 -c15 -> c14 -c16 -> c15 }
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/fuxi/af-facts.n3 Tue Apr 02 15:33:18 2013 +0100 @@ -0,0 +1,87 @@ +@prefix af: <http://sovarr.c4dm.eecs.qmul.ac.uk/features/> . +@prefix owl: <http://www.w3.org/2002/07/owl#> . +@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . + +af:CepstralDomain a owl:Class ; + rdfs:subClassOf af:Domain . + +af:DenseOutput a owl:Class ; + rdfs:subClassOf af:Output . + +af:EigendomainDomain a owl:Class ; + rdfs:subClassOf af:Domain . + +af:FrequencyDomain a owl:Class ; + rdfs:subClassOf af:Domain . + +af:GlobalTemporalscale a owl:Class ; + rdfs:subClassOf af:Temporalscale . + +af:InterframeTemporalscale a owl:Class ; + rdfs:subClassOf af:Temporalscale . + +af:IntraframeTemporalscale a owl:Class ; + rdfs:subClassOf af:Temporalscale . + +af:ModulationFrequencyDomain a owl:Class ; + rdfs:subClassOf af:Domain . + +af:MultidimensionalDimensionality a owl:Class ; + rdfs:subClassOf af:Dimensionality . + +af:OnedimensionalDimensionality a owl:Class ; + rdfs:subClassOf af:Dimensionality . + +af:PerceptualLevel a owl:Class ; + rdfs:subClassOf af:Level . + +af:PhaseSpaceDomain a owl:Class ; + rdfs:subClassOf af:Domain . + +af:PhysicalLevel a owl:Class ; + rdfs:subClassOf af:Level . + +af:PsychoacousticModel a owl:Class ; + rdfs:subClassOf af:Model . + +af:SparseOutput a owl:Class ; + rdfs:subClassOf af:Output . + +af:dimensionality a owl:ObjectProperty ; + rdfs:domain af:AudioFeature ; + rdfs:range af:Dimensionality . + +af:domain a owl:ObjectProperty ; + rdfs:domain af:AudioFeature ; + rdfs:range af:Domain . + +af:level a owl:ObjectProperty ; + rdfs:domain af:AudioFeature ; + rdfs:range af:Level . + +af:model a owl:ObjectProperty ; + rdfs:domain af:AudioFeature ; + rdfs:range af:Model . + +af:output a owl:ObjectProperty ; + rdfs:domain af:AudioFeature ; + rdfs:range af:Output . + +af:temporalscale a owl:ObjectProperty ; + rdfs:domain af:AudioFeature ; + rdfs:range af:Temporalscale . + +af:Model a owl:Class . + +af:Dimensionality a owl:Class . + +af:Level a owl:Class . + +af:Output a owl:Class . + +af:Temporalscale a owl:Class . + +af:AudioFeature a owl:Class . + +af:Domain a owl:Class . +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/fuxi/af-rules.n3 Tue Apr 02 15:33:18 2013 +0100 @@ -0,0 +1,29 @@ +@prefix af: <http://sovarr.c4dm.eecs.qmul.ac.uk/features/> . +@prefix owl: <http://www.w3.org/2002/07/owl#> . + +{ ?x af:domain af:Cepstral . } => { ?x af:output af:Dense . ?x af:temporalscale af:Intraframe . ?x af:dimensionality af:MultiDimensional . ?x af:level af:Physical . } +{ ?x af:temporalscale af:Interframe . } => { ?x af:domain af:ModulationFrequency . ?x af:dimensionality af:MultiDimensional . ?x af:level af:Perceptual . } +{ ?x af:domain af:ModulationFrequency . } => { ?x af:temporalscale af:Interframe . ?x af:dimensionality af:MultiDimensional . ?x af:level af:Perceptual . } +{ ?x af:output af:Dense . ?x af:dimensionality af:MultiDimensional . } => { ?x af:temporalscale af:Intraframe . } +{ ?x af:domain af:Frequency . ?x af:dimensionality af:MultiDimensional . } => { ?x af:temporalscale af:Intraframe . } +{ ?x af:domain af:Frequency . ?x af:dimensionality af:OneDimensional . } => { ?x af:temporalscale af:Intraframe . } +{ ?x af:output af:Dense . ?x af:domain af:Frequency . ?x af:temporalscale af:Intraframe . ?x af:dimensionality af:OneDimensional . } => { ?x af:level af:Perceptual . } +{ ?x af:output af:Dense . ?x af:level af:Perceptual . } => { ?x af:domain af:Frequency . ?x af:temporalscale af:Intraframe . } +{ ?x af:domain af:Frequency . ?x af:level af:Perceptual . } => { ?x af:temporalscale af:Intraframe . } +{ ?x af:temporalscale af:Intraframe . ?x af:level af:Perceptual . } => { ?x af:domain af:Frequency . } +{ ?x af:domain af:Frequency . ?x af:temporalscale af:Intraframe . ?x af:dimensionality af:MultiDimensional . ?x af:level af:Perceptual . } => { ?x af:output af:Dense . } +{ ?x af:dimensionality af:OneDimensional . ?x af:level af:Perceptual . } => { ?x af:domain af:Frequency . ?x af:temporalscale af:Intraframe . } +{ ?x af:domain af:Frequency . ?x af:level af:Physical . } => { ?x af:temporalscale af:Intraframe . } +{ ?x af:output af:Dense . ?x af:domain af:Frequency . ?x af:temporalscale af:Intraframe . ?x af:level af:Physical . } => { ?x af:dimensionality af:MultiDimensional . } +{ ?x af:dimensionality af:MultiDimensional . ?x af:level af:Physical . } => { ?x af:temporalscale af:Intraframe . } +{ ?x af:model af:Psychoacoustic . } => { ?x af:temporalscale af:Intraframe . } +{ ?x af:output af:Dense . ?x af:temporalscale af:Intraframe . ?x af:model af:Psychoacoustic . } => { ?x af:domain af:Cepstral . ?x af:dimensionality af:MultiDimensional . ?x af:level af:Physical . } +{ ?x af:domain af:Frequency . ?x af:temporalscale af:Intraframe . ?x af:model af:Psychoacoustic . } => { ?x af:dimensionality af:OneDimensional . ?x af:level af:Perceptual . } +{ ?x af:temporalscale af:Intraframe . ?x af:dimensionality af:MultiDimensional . ?x af:model af:Psychoacoustic . } => { ?x af:output af:Dense . ?x af:domain af:Cepstral . ?x af:level af:Physical . } +{ ?x af:temporalscale af:Intraframe . ?x af:dimensionality af:OneDimensional . ?x af:model af:Psychoacoustic . } => { ?x af:domain af:Frequency . ?x af:level af:Perceptual . } +{ ?x af:temporalscale af:Intraframe . ?x af:level af:Physical . ?x af:model af:Psychoacoustic . } => { ?x af:output af:Dense . ?x af:domain af:Cepstral . ?x af:dimensionality af:MultiDimensional . } +{ ?x af:temporalscale af:Intraframe . ?x af:domain af:Time . } => { ?x af:output af:Dense . } +{ ?x af:dimensionality af:OneDimensional . ?x af:domain af:Time . } => { ?x af:level af:Physical . } +{ ?x af:level af:Physical . ?x af:domain af:Time . } => { ?x af:dimensionality af:OneDimensional . } +{ ?x af:output af:Sparse . } => { ?x af:domain af:Time . } +{ ?x af:output af:Dense . ?x af:dimensionality af:OneDimensional . ?x af:level af:Physical . } => { ?x af:domain af:Time . }
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/fuxi/convertImplicationstoN3.py Tue Apr 02 15:33:18 2013 +0100 @@ -0,0 +1,123 @@ +import rdflib +from rdflib import Graph, RDF, RDFS, URIRef, Literal, OWL, Namespace, BNode + +cat = ["output", "domain", "level", "temporalscale", "dimensionality", "model"] +val = { + "output": ["Dense", "Sparse"], + "temporalscale": ["Interframe", "Intraframe", "Global"], + "domain": ["Modulation Frequency", "Frequency", "Cepstral", "Eigendomain", "Phase Space"], + "level": ["Perceptual", "Physical"], + "dimensionality": ["One-dimensional", "Multi-dimensional"], + "model": ["Psychoacoustic"] +} + +basedir = '/Users/alo/MusicOntology/features/' +readpath = basedir + 'fcadata/baseImplications.txt' +writepath = basedir + 'fuxi/af-rules.n3' +factpath = basedir + 'fuxi/af-facts.n3' + +def readFile(path): + file = open(path) + text = file.read() + file.close() + return text.split("\n") + +def writeN3(string, path): + file = open(path, 'w') + file.write(string) + file.close() + +def addHeader(): + text = "@prefix af: <http://sovarr.c4dm.eecs.qmul.ac.uk/features/> .\n" + text += "@prefix owl: <http://www.w3.org/2002/07/owl#> .\n\n" + return text + +def convertRules(rows): + n3 = addHeader() + for i in range(len(rows)-1): + row = rows[i] + if row != '': + count = int(row[row.index("<")+1:row.index(">")-1]) + premise = row[row.index(">")+2:row.index("==>")-1].split() + conclusion = row[row.index("==>")+4:-1].split() + if count > 0: + n3 += "{ " + + for pre in premise: + prop = "af:"+pre.split("-")[-1] + value = "af:"+(" ".join(pre.split("-")[0:-1]).title().replace(" ", "").replace("-", "")) + n3 += " ?x " + prop + " " + value + n3 += " . " + + n3+= " } => { " + + for con in conclusion: + prop = "af:"+con.split("-")[-1] + value = "af:"+(" ".join(con.split("-")[0:-1]).title().replace(" ", "").replace("-", "")) + n3 += " ?x " + prop + " " + value + n3 += " . " + + n3 += " } \n" + + return n3 + +def writeFacts(path): + graph = Graph() + + af = Namespace('http://sovarr.c4dm.eecs.qmul.ac.uk/features/') + graph.bind('af', af) + + owl = Namespace('http://www.w3.org/2002/07/owl#') + graph.bind('owl', owl) + + afID = af + "AudioFeature" + + graph.add(( + URIRef(afID), + RDF.type, + OWL.Class + )) + + for obj in cat: + objID = af+obj.title() + graph.add(( + URIRef(objID), + RDF.type, + OWL.Class + )) + for subcls in val[obj]: + subID = af+subcls.replace(" ", "").replace("-", "")+obj.title() + graph.add(( + URIRef(subID), + RDF.type, + OWL.Class + )) + graph.add(( + URIRef(subID), + RDFS.subClassOf, + URIRef(objID) + )) + + # add object properties + propID = af+obj + graph.add(( + URIRef(propID), + RDF.type, + OWL.ObjectProperty + )) + graph.add(( + URIRef(propID), + RDFS.domain, + URIRef(afID) + )) + graph.add(( + URIRef(propID), + RDFS.range, + URIRef(objID) + )) + + graph.serialize(path, format="n3") + + +writeN3(convertRules(readFile(readpath)),writepath) +writeFacts(factpath) \ No newline at end of file
--- a/pdfextract/graphDefs.py Mon Apr 01 21:26:45 2013 +0100 +++ b/pdfextract/graphDefs.py Tue Apr 02 15:33:18 2013 +0100 @@ -51,7 +51,7 @@ rtn = "" for key, syns in synonyms.items(): for item in syns: - if name.replace(' ', '').replace('-', '') == item.replace(' ', '').replace('-', ''): + if name.replace(' ', '').replace('-', '').lower() == item.replace(' ', '').replace('-', '').lower(): rtn = key.replace(' ', '').replace('-', '') break return rtn
--- a/pdfextract/writeBase.py Mon Apr 01 21:26:45 2013 +0100 +++ b/pdfextract/writeBase.py Tue Apr 02 15:33:18 2013 +0100 @@ -6,12 +6,16 @@ cat = [line.strip() for line in open('pdfextract/categories.txt')] sig = [line.strip() for line in open('pdfextract/sig.txt')] -local = 'http://sovarr.c4dm.eecs.qmul.ac.uk/features/' +graph = Graph() -graph = Graph() -graph.bind('local', URIRef(local)) -graph.bind('dc', URIRef('http://purl.org/dc/elements/1.1/')) -graph.bind('owl', URIRef('http://www.w3.org/2002/07/owl#')) +af = Namespace('http://sovarr.c4dm.eecs.qmul.ac.uk/features/') +graph.bind('af', af) + +dc = Namespace('http://purl.org/dc/elements/1.1/') +graph.bind('dc', dc) + +owl = Namespace('http://www.w3.org/2002/07/owl#') +graph.bind('owl', owl) i = 0 @@ -101,7 +105,6 @@ Literal(temp) )) - if word[1] == 'Y': temp = 'perceptual' else: @@ -134,14 +137,25 @@ if word[4] == 'V': temp = 'parameterized' + dim = 'multi-dimensional' else: temp = word[4] + if int(temp) == 1: + dim = 'one-dimensional' + else: + dim = 'multi-dimensional' graph.add(( URIRef(id), URIRef(local + 'dimensions'), Literal(temp) )) + + graph.add(( + URIRef(id), + URIRef(local + 'dimensionality'), + Literal(dim) + )) temp = { 'ASR': "speech recognition",
--- a/rdf/base.rdf Mon Apr 01 21:26:45 2013 +0100 +++ b/rdf/base.rdf Tue Apr 02 15:33:18 2013 +0100 @@ -3,1153 +3,1229 @@ xmlns:local="http://sovarr.c4dm.eecs.qmul.ac.uk/features/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" > - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/AmplitudeDescriptor"> - <local:complexity>low</local:complexity> - <local:appdomain>environmental sound recognition</local:appdomain> - <local:feature>AmplitudeDescriptor</local:feature> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LineSpectralFrequencies"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>parameterized</local:dimensions> + <local:appdomain>several</local:appdomain> + <local:computation>Percentile</local:computation> + <local:computation>Autoregression (Linear Prediction Analysis)</local:computation> + <local:computation>Windowing</local:computation> <local:temporalscale>intraframe</local:temporalscale> <local:level>physical</local:level> + <local:feature>LineSpectralFrequencies</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>medium</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SubbandEnergyRatio"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>parameterized</local:dimensions> + <local:appdomain>several</local:appdomain> + <local:computation>Regression</local:computation> + <local:computation>Energy Spectral Density</local:computation> + <local:computation>Normalization</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>physical</local:level> + <local:feature>SubbandEnergyRatio</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>low</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BarkscaleFrequencyCepstralCoefficients"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>parameterized</local:dimensions> + <local:model>psychoacoustic</local:model> + <local:appdomain>several</local:appdomain> + <local:computation>Regression</local:computation> + <local:computation>Discrete Cosine Transform</local:computation> + <local:computation>Logarithm</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>physical</local:level> + <local:feature>BarkscaleFrequencyCepstralCoefficients</local:feature> + <local:domain>cepstral</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>high</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ChromaCENSFeatures"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>12</local:dimensions> + <local:appdomain>music information retrieval</local:appdomain> + <local:computation>Band-pass Filter Bank</local:computation> + <local:computation>Low-pass Filter</local:computation> + <local:computation>Root Mean Square</local:computation> + <local:computation>Normalization</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>ChromaCENSFeatures</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>medium</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatHistogram"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>6</local:dimensions> + <local:appdomain>music information retrieval</local:appdomain> + <local:computation>Discrete Wavelet Transform</local:computation> + <local:computation>Autocorrelation</local:computation> + <local:computation>Root Mean Square</local:computation> + <local:computation>Low-pass Filter</local:computation> + <local:computation>Spectral binning</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>interframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>BeatHistogram</local:feature> + <local:domain>modulation frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>medium</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicConcentration"> + <local:dimensionality>one-dimensional</local:dimensionality> + <local:dimensions>1</local:dimensions> + <local:appdomain>music information retrieval</local:appdomain> + <local:computation>Root Mean Square</local:computation> + <local:computation>Energy Spectral Density</local:computation> + <local:computation>Level Crossing Detector</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>HarmonicConcentration</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>medium</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ShortTimeEnergy"> + <local:dimensionality>one-dimensional</local:dimensionality> + <local:dimensions>1</local:dimensions> + <local:appdomain>several</local:appdomain> + <local:computation>Deviation, Sum of Differences</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>physical</local:level> + <local:feature>ShortTimeEnergy</local:feature> <local:domain>temporal</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>low</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicCoefficient"> + <local:dimensionality>one-dimensional</local:dimensionality> + <local:dimensions>1</local:dimensions> + <local:appdomain>audio segmentation</local:appdomain> + <local:computation>Sum, Weighted Sum</local:computation> + <local:computation>Autocorrelation</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>HarmonicCoefficient</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>low</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralCrest"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>parameterized</local:dimensions> + <local:appdomain>fingerprinting</local:appdomain> + <local:computation>Sum, Weighted Sum</local:computation> + <local:computation>Windowing</local:computation> + <local:computation>Mean</local:computation> + <local:computation>Regression</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Logarithm</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>SpectralCrest</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>low</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ZeroCrossingPeakAmplitudes"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>parameterized</local:dimensions> + <local:model>psychoacoustic</local:model> + <local:appdomain>speech recognition</local:appdomain> + <local:computation>Band-pass Filter (Bank)</local:computation> + <local:computation>Logarithm</local:computation> + <local:computation>Root Mean Square</local:computation> <local:computation>Spectral binning</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>physical</local:level> + <local:feature>ZeroCrossingPeakAmplitudes</local:feature> + <local:domain>temporal</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>medium</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralCentroid"> + <local:dimensionality>one-dimensional</local:dimensionality> + <local:dimensions>1</local:dimensions> + <local:appdomain>several</local:appdomain> + <local:computation>Regression</local:computation> + <local:computation>Mean</local:computation> + <local:computation>Logarithm</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>SpectralCentroid</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>low</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioSpectrumBasis"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>parameterized</local:dimensions> + <local:appdomain>environmental sound recognition</local:appdomain> + <local:computedIn>MPEG-7</local:computedIn> + <local:computation>Windowing</local:computation> + <local:computation>Normalization</local:computation> + <local:computation>Regression</local:computation> + <local:computation>Independent Component Analysis</local:computation> + <local:computation>Singular Value Decomposition</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Logarithm</local:computation> + <local:temporalscale>interframe</local:temporalscale> + <local:level>physical</local:level> + <local:feature>MPEG7AudioSpectrumBasis</local:feature> + <local:domain>eigendomain</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>high</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/IntegralLoudness"> + <local:dimensionality>one-dimensional</local:dimensionality> + <local:dimensions>1</local:dimensions> + <local:model>psychoacoustic</local:model> + <local:appdomain>music information retrieval</local:appdomain> + <local:computation>Exponential Function</local:computation> + <local:computation>Root Mean Square</local:computation> + <local:computation>(Non-) Linear Weighting Function</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Windowing</local:computation> + <local:computation>Logarithm</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>IntegralLoudness</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>high</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PsychoacousticalPitch"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>parameterized</local:dimensions> + <local:model>psychoacoustic</local:model> + <local:appdomain>several</local:appdomain> + <local:computation>Band-pass Filter (Bank)</local:computation> + <local:computation>(Non-) Linear Weighting Function</local:computation> + <local:computation>Autocorrelation</local:computation> + <local:computation>Root Mean Square</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>PsychoacousticalPitch</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>high</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralCenter"> + <local:dimensionality>one-dimensional</local:dimensionality> + <local:dimensions>1</local:dimensions> + <local:appdomain>music information retrieval</local:appdomain> + <local:computation>Harmonic Peak Detection</local:computation> + <local:computation>Energy Spectral Density</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>SpectralCenter</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>low</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SubbandSpectralFlux"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>8</local:dimensions> + <local:appdomain>environmental sound recognition</local:appdomain> + <local:computation>Derivation, Difference</local:computation> + <local:computation>Windowing</local:computation> + <local:computation>Normalization</local:computation> + <local:computation>Mean</local:computation> + <local:computation>Regression</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Logarithm</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>SubbandSpectralFlux</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>medium</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LinearPredictionCepstralCoefficients"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>parameterized</local:dimensions> + <local:abbreviation>LPCC</local:abbreviation> + <local:appdomain>speech recognition</local:appdomain> + <local:computation>Band-pass Filter (Bank)</local:computation> + <local:computation>Cepstral Recursion Formula</local:computation> + <local:computation>Autoregression (Linear Prediction Analysis)</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>physical</local:level> + <local:feature>LinearPredictionCepstralCoefficients</local:feature> + <local:domain>cepstral</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>medium</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7HarmonicSpectralDeviation"> + <local:dimensionality>one-dimensional</local:dimensionality> + <local:dimensions>1</local:dimensions> + <local:appdomain>music information retrieval</local:appdomain> + <local:computedIn>MPEG-7</local:computedIn> + <local:computation>Median</local:computation> + <local:computation>Windowing</local:computation> + <local:computation>Mean</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Level Crossing Detector</local:computation> + <local:computation>Logarithm</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>MPEG7HarmonicSpectralDeviation</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>medium</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/LinearPredictiveCoding"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>parameterized</local:dimensions> + <local:abbreviation>LPC</local:abbreviation> + <local:appdomain>speech recognition</local:appdomain> + <local:computation>Band-pass Filter (Bank)</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Autoregression (Linear Prediction Analysis)</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>physical</local:level> + <local:feature>LinearPredictiveCoding</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>low</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/SpectralSlope"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>4</local:dimensions> + <local:appdomain>several</local:appdomain> + <local:computation>Peak Detection</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>physical</local:level> + <local:feature>SpectralSlope</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>low</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchProfile"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>12</local:dimensions> + <local:appdomain>music information retrieval</local:appdomain> + <local:computation>Sum, Weighted Sum</local:computation> + <local:computation>Root Mean Square</local:computation> + <local:computation>Constant Q Transform</local:computation> + <local:computation>Spectral binning</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>PitchProfile</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>high</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7SpectralCentroid"> + <local:dimensionality>one-dimensional</local:dimensionality> + <local:dimensions>1</local:dimensions> + <local:appdomain>music information retrieval</local:appdomain> + <local:computedIn>MPEG-7</local:computedIn> + <local:computation>Mean</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:temporalscale>global</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>MPEG7SpectralCentroid</local:feature> + <local:domain>frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>low</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7LogAttackTime"> + <local:dimensionality>one-dimensional</local:dimensionality> + <local:dimensions>1</local:dimensions> + <local:appdomain>music information retrieval</local:appdomain> + <local:computedIn>MPEG-7</local:computedIn> + <local:computation>Logarithm</local:computation> + <local:computation>Root Mean Square</local:computation> + <local:computation>Power</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>global</local:temporalscale> + <local:level>physical</local:level> + <local:feature>MPEG7LogAttackTime</local:feature> + <local:domain>temporal</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>low</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PerceptualLinearPrediction"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>parameterized</local:dimensions> + <local:model>psychoacoustic</local:model> + <local:appdomain>speech recognition</local:appdomain> + <local:computation>Autoregression (Linear Prediction Analysis)</local:computation> + <local:computation>Cepstral Recursion Formula</local:computation> + <local:computation>(Non-) Linear Weighting Function</local:computation> + <local:computation>Regression</local:computation> + <local:computation>Discrete Cosine Transform</local:computation> + <local:computation>Windowing</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:temporalscale>intraframe</local:temporalscale> + <local:level>physical</local:level> + <local:feature>PerceptualLinearPrediction</local:feature> + <local:domain>cepstral</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>high</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BeatSpectrum"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>parameterized</local:dimensions> + <local:appdomain>music information retrieval</local:appdomain> + <local:computation>Low-pass Filter</local:computation> + <local:computation>Autocorrelation</local:computation> + <local:computation>Windowing</local:computation> + <local:computation>Discrete Fourier Transform</local:computation> + <local:computation>Logarithm</local:computation> + <local:computation>Cross-Correlation</local:computation> + <local:temporalscale>interframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>BeatSpectrum</local:feature> + <local:domain>modulation frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + <local:complexity>high</local:complexity> + </rdf:Description> + <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/BandPeriodicity"> + <local:dimensionality>multi-dimensional</local:dimensionality> + <local:dimensions>4</local:dimensions> + <local:appdomain>audio segmentation</local:appdomain> + <local:computation>Sum, Weighted Sum</local:computation> + <local:computation>Band-pass Filter (Bank)</local:computation> + <local:computation>Root Mean Square</local:computation> + <local:computation>Autocorrelation</local:computation> + <local:computation>Windowing</local:computation> + <local:temporalscale>interframe</local:temporalscale> + <local:level>perceptual</local:level> + <local:feature>BandPeriodicity</local:feature> + <local:domain>modulation frequency</local:domain> + <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> + 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<local:temporalscale>intraframe</local:temporalscale> - <local:computedIn>MPEG-7</local:computedIn> - <local:level>perceptual</local:level> - <local:domain>frequency</local:domain> - <local:computation>Mean</local:computation> - <local:computation>Discrete Fourier Transform</local:computation> - <local:computation>Logarithm</local:computation> - <local:computation>Regression</local:computation> - <local:computation>Windowing</local:computation> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <local:dimensions>1</local:dimensions> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PitchProfile"> - <local:complexity>high</local:complexity> - <local:appdomain>music information retrieval</local:appdomain> - <local:feature>PitchProfile</local:feature> - <local:temporalscale>intraframe</local:temporalscale> - <local:level>perceptual</local:level> - <local:domain>frequency</local:domain> - <local:computation>Constant Q Transform</local:computation> - <local:computation>Spectral binning</local:computation> - <local:computation>Sum, Weighted Sum</local:computation> - <local:computation>Root Mean Square</local:computation> - <local:computation>Windowing</local:computation> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <local:dimensions>12</local:dimensions> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/ModifiedGroupDelay"> - <local:complexity>medium</local:complexity> - <local:appdomain>speech recognition</local:appdomain> - <local:feature>ModifiedGroupDelay</local:feature> - <local:temporalscale>intraframe</local:temporalscale> - <local:level>physical</local:level> - <local:domain>frequency</local:domain> - <local:computation>Low-pass Filter</local:computation> - <local:computation>Discrete Fourier Transform</local:computation> - <local:computation>Discrete Cosine Transform</local:computation> - <local:computation>Group Delay Function</local:computation> - <local:computation>Windowing</local:computation> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <local:dimensions>parameterized</local:dimensions> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MultiresolutionEntropy"> - <local:complexity>medium</local:complexity> - <local:appdomain>speech recognition</local:appdomain> - <local:feature>MultiresolutionEntropy</local:feature> - <local:temporalscale>intraframe</local:temporalscale> - <local:level>perceptual</local:level> - <local:domain>frequency</local:domain> - <local:computation>Normalization</local:computation> - <local:computation>Entropy</local:computation> - <local:computation>Discrete Fourier Transform</local:computation> - <local:computation>Regression</local:computation> - <local:computation>Windowing</local:computation> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <local:dimensions>parameterized</local:dimensions> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/HarmonicProminence"> - <local:complexity>medium</local:complexity> - <local:appdomain>environmental sound recognition</local:appdomain> - <local:feature>HarmonicProminence</local:feature> - <local:temporalscale>intraframe</local:temporalscale> - <local:level>perceptual</local:level> - <local:domain>frequency</local:domain> - <local:computation>Zero-/Level Crossing Detector</local:computation> - <local:computation>Autocorrelation</local:computation> - <local:computation>Windowing</local:computation> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <local:dimensions>1</local:dimensions> - </rdf:Description> - <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/MPEG7AudioSpectrumBasis"> - <local:complexity>high</local:complexity> - <local:appdomain>environmental sound recognition</local:appdomain> - 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rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <local:dimensions>8</local:dimensions> + <local:complexity>medium</local:complexity> </rdf:Description> <rdf:Description rdf:about="http://sovarr.c4dm.eecs.qmul.ac.uk/features/PulseMetric"> - <local:complexity>medium</local:complexity> + <local:dimensionality>one-dimensional</local:dimensionality> + <local:dimensions>1</local:dimensions> <local:appdomain>audio segmentation</local:appdomain> - <local:feature>PulseMetric</local:feature> - <local:temporalscale>intraframe</local:temporalscale> - <local:level>perceptual</local:level> - <local:domain>modulation frequency</local:domain> - <local:computation>Autocorrelation</local:computation> <local:computation>Band-pass Filter (Bank)</local:computation> <local:computation>Root Mean Square</local:computation> - <local:computation>Windowing</local:computation> - <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Class"/> - <local:dimensions>1</local:dimensions> - </rdf:Description> - 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