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 />
2.4 Perceptual model<br />
•<br />
•<br />
2.4.1 Mid-ear filtering<br />
2.4.2 Mel scale<br />
$<br />
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23/04/04 4/25<br />
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Amplitude [db20]<br />
0<br />
-20<br />
-40<br />
-60<br />
-80<br />
-100<br />
10 -4<br />
-120<br />
2<br />
1.8<br />
1.6<br />
1.4<br />
1.2<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
10 -2<br />
10 0<br />
10 2<br />
Frequency [Hz]<br />
10 4<br />
+ , - .<br />
Number <strong>of</strong> mel bands: 24<br />
¥ <br />
0 0.5 1 1.5 2 2.5<br />
x 10 4<br />
0<br />
Frequency [Hz]<br />
/ ,<br />
10 6
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