A large set of audio features for sound description ... - WWW Ircam
A large set of audio features for sound description ... - WWW Ircam
A large set of audio features for sound description ... - WWW Ircam
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G. Peeters A Large Set <strong>of</strong> Audio Features <strong>for</strong> Sound Description 2004<br />
6.3 Global spectral shape <strong>description</strong><br />
6.3.1 Mel Frequency Cepstral Coefficients (MFCC) (cuidado:AudioMFCC) DP.i_MFCC_m<br />
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$<br />
s(n) FFT MelBand<br />
MFCC<br />
DCT<br />
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∂ <br />
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7 Harmonic <strong>features</strong><br />
Log<br />
-20<br />
0 1000 2000 3000 4000 5000 6000<br />
1<br />
Frequency<br />
23/04/04 16/25<br />
Log-amplitude<br />
Log-amplitude<br />
Value<br />
-5<br />
-10<br />
-15<br />
0<br />
-1<br />
-2<br />
spectrum<br />
mid-ear spectrum<br />
Mel band spectrum<br />
MFCC spectrum<br />
-3<br />
0 5 10 15 20 25<br />
5<br />
Mel band<br />
MFCC<br />
0<br />
-5<br />
-10<br />
0 2 4 6<br />
MFC coefficient<br />
8 10 12<br />
0 4# 5 -<br />
4 5 ,<br />
,<br />
4 5 ,<br />
7.1.1 Fundamental frequency (mpeg7:AudioFundamentalFrequency) DH.i_f0_v<br />
7.1.2 Noisiness (mpeg7:AudioHarmonicity) DH.i_noisiness_v<br />
<br />
=
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