annotate dsp/lin2mel.m @ 61:eff6bddf82e3
tip
Finally implemented perceptual brightness thing.
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samer |
| date |
Sun, 11 Oct 2015 10:20:42 +0100 |
| parents |
c3b0cd708782 |
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line source |
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samer@32
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1 % lin2mel - matrix to warp linear scale power spectra to mel scale
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samer@32
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2 %
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samer@32
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3 % lin2mel ::
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samer@32
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4 % N:natural ~'size of FFT used to compute spectra',
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samer@32
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5 % nonneg ~'sampling frequency',
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samer@32
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6 % [[1,2]->freq] ~'upper and lower frequency limits',
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7 % L:natural ~'number of mel bands to compute'
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8 % -> [[L,dftbins(N)]].
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9
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10 function melW=lin2mel(N,fs,flim,L)
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11 melW = tri_filterbank_aa(melspace(flim(1),min(flim(2),fs/2),L+2),binmap(0,fs/2,dftbins(N)));
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samer@32
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12 end
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