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G. Peeters A Large Set of Audio Features for Sound Description 2004 4.2 Zero-crossing rate (cuidado:AudioXcorr) DT.i_zcr_v $ 5 Energy features ' > - ? / + ' 8 + > - ? 7 0 = 8 5.1 Total Energy (mpeg7:AudioPower) DE.i_tot_v 5.2 Harmonic Part Energy (cuidado:AudioHarmonicPower) DE.i_harmo_v $ 5.3 Noise Part Energy (cuidado:AudioNoisePower) DE.i_noise_v $ 23/04/04 12/25
G. Peeters A Large Set of Audio Features for Sound Description 2004 6 Spectral features 6.1 Spectral shape description 6.1.1 Spectral centroid (mpeg7:AudioSpectrumCentroid) DS.i_sc_v μ = • ⋅ ¡ δ £¥¤§¦©¨ ¢ • ¡ = = ¡ ¡ 6.1.2 Spectral spread (mpeg7:AudioSpectrumSpread) DS.i_ss_v σ = − μ ⋅ ¡ δ 6.1.3 Spectral skewness (cuidado:AudioSpectrumSkewness) DS.i_skew_v = − μ ⋅ δ • • • • • ¡ = γ σ 23/04/04 13/25 ¢ ¢ 0 . 0 9 0 . 0 8 0 . 0 7 0 . 0 6 0 . 0 5 0 . 0 4 0 . 0 3 0 . 0 2 0 . 0 1 0 . 0 2 5 0 . 0 2 0 . 0 1 5 0 . 0 1 0 . 0 0 5 0 . 0 2 5 0 . 0 2 0 . 0 1 5 0 . 0 1 0 . 0 0 5 m e a n : 7 . 8 7 2 e - 0 1 7 s td : 5 s k e w : - 8 . 3 2 5 4 e - 0 1 7 k u r t: 3 d a ta g a u s s f i t 0 - 5 0 - 4 0 - 3 0 - 2 0 - 1 0 0 1 0 2 0 3 0 4 0 5 0 m e a n : 1 6 .6 7 s td : 2 3 . 5 7 1 4 s k e w : - 0 . 5 6 5 6 9 k u r t: 2 . 4 d a t a g a u s s fi t 0 - 5 0 -4 0 - 3 0 -2 0 - 1 0 0 1 0 2 0 3 0 4 0 5 0 m e a n : - 1 6 .6 7 s t d : 2 3 . 5 7 1 4 s k e w : 0 . 5 6 5 6 9 k u r t : 2 . 4 d a t a g a u s s f i t 0 - 5 0 - 4 0 - 3 0 - 2 0 - 1 0 0 1 0 2 0 3 0 4 0 5 0
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