nothing@0
|
1 <?xml version="1.0" encoding="UTF-8"?>
|
nothing@0
|
2 <rdf:RDF
|
nothing@0
|
3 xmlns:dc="http://purl.org/dc/elements/1.1/"
|
nothing@0
|
4 xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
nothing@0
|
5 >
|
nothing@0
|
6 <rdf:Description rdf:about="Envelope">
|
nothing@0
|
7 <dc:description>Extract amplitude envelope using hilbert transform, low-pass filtering and decimation.</dc:description>
|
nothing@0
|
8 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
9 </rdf:Description>
|
nothing@0
|
10 <rdf:Description rdf:about="SpectralShapeStatistics">
|
nothing@0
|
11 <dc:description>Compute shape statistics of :class:MagnitudeSpectrum, (see [GR2004]_).</dc:description>
|
nothing@0
|
12 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
13 </rdf:Description>
|
nothing@0
|
14 <rdf:Description rdf:about="Cepstrum">
|
nothing@0
|
15 <dc:description>Feature transform that compute cepstrum coefficients of input feature frames. (use DCT II)</dc:description>
|
nothing@0
|
16 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
17 </rdf:Description>
|
nothing@0
|
18 <rdf:Description rdf:about="Energy">
|
nothing@0
|
19 <dc:description>Compute energy as root mean square of an audio Frame.</dc:description>
|
nothing@0
|
20 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
21 </rdf:Description>
|
nothing@0
|
22 <rdf:Description rdf:about="SpectralVariation">
|
nothing@0
|
23 <dc:description>SpectralVariation is the normalized correlation of :class:spectrum MagnitudeSpectrum between consecutive frames. (see [GP2004]_)</dc:description>
|
nothing@0
|
24 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
25 </rdf:Description>
|
nothing@0
|
26 <rdf:Description rdf:about="SpectralSlope">
|
nothing@0
|
27 <dc:description>SpectralSlope is computed by linear regression of the spectral amplitude. (see [GP2004]_)</dc:description>
|
nothing@0
|
28 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
29 </rdf:Description>
|
nothing@0
|
30 <rdf:Description rdf:about="ComplexDomainOnsetDetection">
|
nothing@0
|
31 <dc:description>Compute onset detection using a complex domain spectral flux method [CD2003]_.</dc:description>
|
nothing@0
|
32 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
33 </rdf:Description>
|
nothing@0
|
34 <rdf:Description rdf:about="TemporalShapeStatistics">
|
nothing@0
|
35 <dc:description>Compute :ref:shape statistics shapestatistics of signal frames.</dc:description>
|
nothing@0
|
36 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
37 </rdf:Description>
|
nothing@0
|
38 <rdf:Description rdf:about="AutoCorrelation">
|
nothing@0
|
39 <dc:description>Compute autocorrelation coefficients *ac* on each frames.</dc:description>
|
nothing@0
|
40 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
41 </rdf:Description>
|
nothing@0
|
42 <rdf:Description rdf:about="Loudness">
|
nothing@0
|
43 <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>
|
nothing@0
|
44 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
45 </rdf:Description>
|
nothing@0
|
46 <rdf:Description rdf:about="MagnitudeSpectrum">
|
nothing@0
|
47 <dc:description>Compute frame's magnitude spectrum, using an analysis window (Hanning or Hamming), or not.</dc:description>
|
nothing@0
|
48 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
49 </rdf:Description>
|
nothing@0
|
50 <rdf:Description rdf:about="AutoCorrelationPeaksIntegrator">
|
nothing@0
|
51 <dc:description>Feature transform that compute peaks of the autocorrelation function, outputs peaks and amplitude.</dc:description>
|
nothing@0
|
52 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
53 </rdf:Description>
|
nothing@0
|
54 <rdf:Description rdf:about="SpectralRolloff">
|
nothing@0
|
55 <dc:description>Spectral roll-off is the frequency so that 99% of the energy is contained below. see [SS1997]_.</dc:description>
|
nothing@0
|
56 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
57 </rdf:Description>
|
nothing@0
|
58 <rdf:Description rdf:about="PerceptualSharpness">
|
nothing@0
|
59 <dc:description>Compute the sharpness of :class:Loudness coefficients, according to [GP2004]_.</dc:description>
|
nothing@0
|
60 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
61 </rdf:Description>
|
nothing@0
|
62 <rdf:Description rdf:about="SpectralFlatnessPerBand">
|
nothing@0
|
63 <dc:description>Compute spectral flatness per log-spaced band of 1/4 octave, as proposed in MPEG7 standard.</dc:description>
|
nothing@0
|
64 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
65 </rdf:Description>
|
nothing@0
|
66 <rdf:Description rdf:about="StatisticalIntegrator">
|
nothing@0
|
67 <dc:description>Feature transform that compute the temporal mean and variance of input feature over the given number of frames.</dc:description>
|
nothing@0
|
68 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
69 </rdf:Description>
|
nothing@0
|
70 <rdf:Description rdf:about="ZCR">
|
nothing@0
|
71 <dc:description>Compute zero-crossing rate in frames. see [SS1997]_.</dc:description>
|
nothing@0
|
72 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
73 </rdf:Description>
|
nothing@0
|
74 <rdf:Description rdf:about="PerceptualSpread">
|
nothing@0
|
75 <dc:description>Compute the spread of :class:Loudness coefficients, according to [GP2004]_.</dc:description>
|
nothing@0
|
76 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
77 </rdf:Description>
|
nothing@0
|
78 <rdf:Description rdf:about="Derivate">
|
nothing@0
|
79 <dc:description>Compute temporal derivative of input feature. The derivative is approximated by</dc:description>
|
nothing@0
|
80 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
81 </rdf:Description>
|
nothing@0
|
82 <rdf:Description rdf:about="SpectralDecrease">
|
nothing@0
|
83 <dc:description>Compute spectral decrease accoding to [GP2004]_.</dc:description>
|
nothing@0
|
84 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
85 </rdf:Description>
|
nothing@0
|
86 <rdf:Description rdf:about="OBSIR">
|
nothing@0
|
87 <dc:description>Compute log of :class:OBSI ratio between consecutive octave.</dc:description>
|
nothing@0
|
88 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
89 </rdf:Description>
|
nothing@0
|
90 <rdf:Description rdf:about="LSF">
|
nothing@0
|
91 <dc:description>Compute the Line Spectral Frequency (LSF) coefficients of a signal frame. Algorithm was adapted from ([TB2006]_, [SH1976]_).</dc:description>
|
nothing@0
|
92 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
93 </rdf:Description>
|
nothing@0
|
94 <rdf:Description rdf:about="OBSI">
|
nothing@0
|
95 <dc:description>Compute Octave band signal intensity using a trigular octave filter bank ([SE2005]_).</dc:description>
|
nothing@0
|
96 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
97 </rdf:Description>
|
nothing@0
|
98 <rdf:Description rdf:about="LPC">
|
nothing@0
|
99 <dc:description>Compute the Linear Predictor Coefficients (LPC) of a signal frame. It uses autocorrelation and Levinson-Durbin algorithm. see [JM1975]_.</dc:description>
|
nothing@0
|
100 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
101 </rdf:Description>
|
nothing@0
|
102 <rdf:Description rdf:about="SlopeIntegrator">
|
nothing@0
|
103 <dc:description>Feature transform that compute the slope of input feature over the given number of frames.</dc:description>
|
nothing@0
|
104 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
105 </rdf:Description>
|
nothing@0
|
106 <rdf:Description rdf:about="EnvelopeShapeStatistics">
|
nothing@0
|
107 <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>
|
nothing@0
|
108 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
109 </rdf:Description>
|
nothing@0
|
110 <rdf:Description rdf:about="SpectralCrestFactorPerBand">
|
nothing@0
|
111 <dc:description>Compute spectral crest factor per log-spaced band of 1/4 octave.</dc:description>
|
nothing@0
|
112 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
113 </rdf:Description>
|
nothing@0
|
114 <rdf:Description rdf:about="MFCC">
|
nothing@0
|
115 <dc:description>Compute the Mel-frequencies cepstrum coefficients [DM1980]_.</dc:description>
|
nothing@0
|
116 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
117 </rdf:Description>
|
nothing@0
|
118 <rdf:Description rdf:about="MelSpectrum">
|
nothing@0
|
119 <dc:description>Compute the Mel-frequencies spectrum [DM1980]_.</dc:description>
|
nothing@0
|
120 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
121 </rdf:Description>
|
nothing@0
|
122 <rdf:Description rdf:about="SpectralFlatness">
|
nothing@0
|
123 <dc:description>Compute global spectral flatness using the ratio between geometric and arithmetic mean.</dc:description>
|
nothing@0
|
124 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
125 </rdf:Description>
|
nothing@0
|
126 <rdf:Description rdf:about="AmplitudeModulation">
|
nothing@0
|
127 <dc:description>Tremelo and Grain description, according to [SE2005]_ and [AE2001]_.</dc:description>
|
nothing@0
|
128 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
129 </rdf:Description>
|
nothing@0
|
130 <rdf:Description rdf:about="Frames">
|
nothing@0
|
131 <dc:description>Segment input signal into frames.</dc:description>
|
nothing@0
|
132 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
133 </rdf:Description>
|
nothing@0
|
134 <rdf:Description rdf:about="SpectralFlux">
|
nothing@0
|
135 <dc:description>Compute flux of :class:spectrum MagnitudeSpectrum between consecutives frames.</dc:description>
|
nothing@0
|
136 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
137 </rdf:Description>
|
nothing@0
|
138 <rdf:Description rdf:about="HistogramIntegrator">
|
nothing@0
|
139 <dc:description>Feature transform that compute histogram of input values</dc:description>
|
nothing@0
|
140 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
|
nothing@0
|
141 </rdf:Description>
|
nothing@0
|
142 </rdf:RDF>
|