A deprecated command replaced by MFCC: To MelSpectrogram....
The output of the triangular filters in a mel filter bank will be reconstructed by applying the inverse cosine transform:
|Pj = 2/N (c0/2 + Σk=1N-1 ck cos (πk(j-0.5)/N))),|
where N represents the number of filters, j runs from 1 to N, and coefficients ck with k less than fromCoefficient and k larger than toCoefficient take zero values in the evaluation.
© djmw, October 23, 2014