view rdfn3/af-Yaafe.n3 @ 18:d5012016bf64 tip

added rdfpy and rdfonto directories

@prefix Yaafe: <file:///Users/alo/MusicOntology/features/rdf/> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

Yaafe:AmplitudeModulation a rdfs:Resource ;
    dc:description "Tremelo and Grain description, according to [SE2005]_ and [AE2001]_." .

Yaafe:AutoCorrelation a rdfs:Resource ;
    dc:description "Compute autocorrelation coefficients *ac* on each frames." .

Yaafe:AutoCorrelationPeaksIntegrator a rdfs:Resource ;
    dc:description "Feature transform that compute peaks of the autocorrelation function, outputs peaks and amplitude." .

Yaafe:Cepstrum a rdfs:Resource ;
    dc:description "Feature transform that compute cepstrum coefficients of input feature frames. (use DCT II)" .

Yaafe:ComplexDomainOnsetDetection a rdfs:Resource ;
    dc:description "Compute onset detection using a complex domain spectral flux method [CD2003]_." .

Yaafe:Derivate a rdfs:Resource ;
    dc:description "Compute temporal derivative of input feature. The derivative is approximated by" .

Yaafe:Energy a rdfs:Resource ;
    dc:description "Compute energy as root mean square of an audio Frame." .

Yaafe:Envelope a rdfs:Resource ;
    dc:description "Extract amplitude envelope using hilbert transform, low-pass filtering and decimation." .

Yaafe:EnvelopeShapeStatistics a rdfs:Resource ;
    dc:description "Centroid, spread, skewness and kurtosis of each frame's amplitude envelope. For more details about moments, see :ref:Shape Statistics shapestatistics." .

Yaafe:Frames a rdfs:Resource ;
    dc:description "Segment input signal into frames." .

Yaafe:HistogramIntegrator a rdfs:Resource ;
    dc:description "Feature transform that compute histogram of input values" .

Yaafe:LPC a rdfs:Resource ;
    dc:description "Compute the Linear Predictor Coefficients (LPC) of a signal frame. It uses autocorrelation and Levinson-Durbin algorithm. see [JM1975]_." .

Yaafe:LSF a rdfs:Resource ;
    dc:description "Compute the Line Spectral Frequency (LSF) coefficients of a signal frame. Algorithm was adapted from ([TB2006]_, [SH1976]_)." .

Yaafe:Loudness a rdfs:Resource ;
    dc:description "The loudness coefficients are the energy in each Bark band, normalized by the overall sum. see [GP2004]_ and [MG1997]_ for more details." .

Yaafe:MFCC a rdfs:Resource ;
    dc:description "Compute the Mel-frequencies cepstrum coefficients [DM1980]_." .

Yaafe:MagnitudeSpectrum a rdfs:Resource ;
    dc:description "Compute frame's magnitude spectrum, using an analysis window (Hanning or Hamming), or not." .

Yaafe:MelSpectrum a rdfs:Resource ;
    dc:description "Compute the Mel-frequencies spectrum [DM1980]_." .

Yaafe:OBSI a rdfs:Resource ;
    dc:description "Compute Octave band signal intensity using a trigular octave filter bank ([SE2005]_)." .

Yaafe:OBSIR a rdfs:Resource ;
    dc:description "Compute log of :class:OBSI ratio between consecutive octave." .

Yaafe:PerceptualSharpness a rdfs:Resource ;
    dc:description "Compute the sharpness of :class:Loudness coefficients, according to [GP2004]_." .

Yaafe:PerceptualSpread a rdfs:Resource ;
    dc:description "Compute the spread of :class:Loudness coefficients, according to [GP2004]_." .

Yaafe:SlopeIntegrator a rdfs:Resource ;
    dc:description "Feature transform that compute the slope of input feature over the given number of frames." .

Yaafe:SpectralCrestFactorPerBand a rdfs:Resource ;
    dc:description "Compute spectral crest factor per log-spaced band of 1/4 octave." .

Yaafe:SpectralDecrease a rdfs:Resource ;
    dc:description "Compute spectral decrease accoding to [GP2004]_." .

Yaafe:SpectralFlatness a rdfs:Resource ;
    dc:description "Compute global spectral flatness using the ratio between geometric and arithmetic mean." .

Yaafe:SpectralFlatnessPerBand a rdfs:Resource ;
    dc:description "Compute spectral flatness per log-spaced band of 1/4 octave, as proposed in MPEG7 standard." .

Yaafe:SpectralFlux a rdfs:Resource ;
    dc:description "Compute flux of :class:spectrum MagnitudeSpectrum between consecutives frames." .

Yaafe:SpectralRolloff a rdfs:Resource ;
    dc:description "Spectral roll-off is the frequency so that 99% of the energy is contained below. see [SS1997]_." .

Yaafe:SpectralShapeStatistics a rdfs:Resource ;
    dc:description "Compute shape statistics of :class:MagnitudeSpectrum, (see [GR2004]_)." .

Yaafe:SpectralSlope a rdfs:Resource ;
    dc:description "SpectralSlope is computed by linear regression of the spectral amplitude. (see [GP2004]_)" .

Yaafe:SpectralVariation a rdfs:Resource ;
    dc:description "SpectralVariation is the normalized correlation of :class:spectrum MagnitudeSpectrum between consecutive frames. (see [GP2004]_)" .

Yaafe:StatisticalIntegrator a rdfs:Resource ;
    dc:description "Feature transform that compute the temporal mean and variance of input feature over the given number of frames." .

Yaafe:TemporalShapeStatistics a rdfs:Resource ;
    dc:description "Compute :ref:shape statistics shapestatistics of signal frames." .

Yaafe:ZCR a rdfs:Resource ;
    dc:description "Compute zero-crossing rate in frames. see [SS1997]_." .