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1 <?xml version="1.0" encoding="UTF-8"?>
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2 <rdf:RDF
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3 xmlns:dc="http://purl.org/dc/elements/1.1/"
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4 xmlns:local="http://sovarr.c4dm.eecs.qmul.ac.uk/features/"
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5 xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
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6 xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
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7 >
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8 <rdf:Description rdf:about="Onset">
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9 <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>
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10 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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11 </rdf:Description>
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12 <rdf:Description rdf:about="PeakPicker">
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13 <dc:description>Peak picking utilities function</dc:description>
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14 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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15 </rdf:Description>
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16 <rdf:Description rdf:about="Pitch">
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17 <dc:description>Generic method for pitch detection</dc:description>
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18 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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19 </rdf:Description>
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20 <rdf:Description rdf:about="PitchFastComb">
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21 <dc:description>Pitch detection using a fast harmonic comb filter</dc:description>
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22 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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23 </rdf:Description>
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24 <rdf:Description rdf:about="PitchMultiComb">
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25 <dc:description>Pitch detection using multiple-comb filter</dc:description>
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26 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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27 </rdf:Description>
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28 <rdf:Description rdf:about="PitchSchmitt">
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29 <dc:description>Pitch detection using a Schmitt trigger</dc:description>
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30 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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31 </rdf:Description>
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32 <rdf:Description rdf:about="PitchYin">
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33 <dc:description>Pitch detection using the YIN algorithm</dc:description>
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34 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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35 </rdf:Description>
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36 <rdf:Description rdf:about="PitchFftYin">
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37 <dc:description>Pitch detection using a spectral implementation of the YIN algorithm</dc:description>
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38 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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39 </rdf:Description>
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40 <rdf:Description rdf:about="FilterbankMel">
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41 <dc:description>Mel frequency filter bank coefficients. Set filter bank coefficients to Mel frequency bands</dc:description>
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42 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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43 </rdf:Description>
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44 <rdf:Description rdf:about="FilterbankMel">
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45 <dc:description>Mel frequency filter bank coefficients. Set filter bank coefficients to Mel frequency bands</dc:description>
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46 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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47 </rdf:Description>
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48 <rdf:Description rdf:about="MFCC">
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49 <dc:description>Mel-frequency cepstrum coefficients object</dc:description>
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50 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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51 </rdf:Description>
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52 <rdf:Description rdf:about="TransientSteadyStateSeparation">
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nothing@0
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53 <dc:description>Transient / Steady-state Separation (TSS)</dc:description>
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54 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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55 </rdf:Description>
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56 <rdf:Description rdf:about="OnsetDetectionFunction">
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57 <dc:description>These functions are designed to raise at notes attacks in music signals.</dc:description>
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58 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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59 </rdf:Description>
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60 <rdf:Description rdf:about="EnergyBasedOnsetDetectionFunction">
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61 <dc:description>This function calculates the local energy of the input spectral frame.</dc:description>
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62 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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63 </rdf:Description>
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64 <rdf:Description rdf:about="HighFrequencyContentOnsetDetectionFunction">
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65 <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>
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66 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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67 </rdf:Description>
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68 <rdf:Description rdf:about="ComplexDomainMethodOnsetDetectionFunction">
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69 <dc:description>Complex Domain Method onset detection function.</dc:description>
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70 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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71 </rdf:Description>
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72 <rdf:Description rdf:about="PhaseBasedMethodOnsetDetectionFunction">
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nothing@0
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73 <dc:description>Phase Based Method onset detection function.</dc:description>
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74 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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75 </rdf:Description>
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76 <rdf:Description rdf:about="SpectralDifferenceMethodOnsetDetectionFunction">
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nothing@0
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77 <dc:description>Spectral difference method onset detection function.</dc:description>
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78 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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79 </rdf:Description>
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80 <rdf:Description rdf:about="KullbackLieblerOnsetDetectionFunction">
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81 <dc:description>Kullback-Liebler onset detection function.</dc:description>
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82 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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83 </rdf:Description>
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84 <rdf:Description rdf:about="ModifiedKullbackLieblerOnsetDetectionFunction">
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85 <dc:description>Modified Kullback-Liebler onset detection function.</dc:description>
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86 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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87 </rdf:Description>
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88 <rdf:Description rdf:about="ModifiedKullbackLieblerOnsetDetectionFunction">
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89 <dc:description>Modified Kullback-Liebler onset detection function.</dc:description>
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90 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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91 </rdf:Description>
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92 <rdf:Description rdf:about="SpectralFlux">
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93 <dc:description>Spectral Flux</dc:description>
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94 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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95 </rdf:Description>
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96 <rdf:Description rdf:about="SpectralShapeDescriptors">
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97 <dc:description>Spectral shape descriptors</dc:description>
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98 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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99 </rdf:Description>
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100 <rdf:Description rdf:about="SpectralCentroid">
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101 <dc:description>The spectral centroid represents the barycenter of the spectrum.</dc:description>
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102 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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103 </rdf:Description>
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104 <rdf:Description rdf:about="SpectralSpread">
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105 <dc:description>The spectral spread is the variance of the spectral distribution around its centroid.</dc:description>
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106 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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107 </rdf:Description>
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108 <rdf:Description rdf:about="SpectralSkewness">
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109 <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>
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110 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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111 </rdf:Description>
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112 <rdf:Description rdf:about="SpectralKurtosis">
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113 <dc:description>The kurtosis is a measure of the flatness of the spectrum, computed from the fourth order moment.</dc:description>
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114 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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115 </rdf:Description>
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116 <rdf:Description rdf:about="SpectralSlope">
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117 <dc:description>The spectral slope represents decreasing rate of the spectral amplitude, computed using a linear regression.</dc:description>
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118 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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119 </rdf:Description>
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120 <rdf:Description rdf:about="SpectralDecrease">
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121 <dc:description>The spectral decrease is another representation of the decreasing rate, based on perceptual criteria.</dc:description>
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122 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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123 </rdf:Description>
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124 <rdf:Description rdf:about="SpectralRolloff">
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125 <dc:description>This function returns the bin number below which 95% of the spectrum energy is found.</dc:description>
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126 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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127 </rdf:Description>
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128 <rdf:Description rdf:about="BeatTracking">
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129 <dc:description>Beat tracking using a context dependant model.</dc:description>
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130 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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131 </rdf:Description>
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132 <rdf:Description rdf:about="Tempo">
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133 <dc:description>Tempo detection driver. This object stores all the memory required for tempo detection algorithm and returns the estimated beat locations.</dc:description>
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134 <rdf:type rdf:resource="http://www.w3.org/2000/01/rdf-schema#Resource"/>
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135 </rdf:Description>
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136 </rdf:RDF> |