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jAudio 1.0 Aggregator Appendix

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Mel Frequency Cepstrum Coeffecients

First created for the study of speech sounds, it one of the oldest hearing-specific features. It is designed to exploit 2 properties - human hearing is logarithmic and perception of amplitude is logarithmic as well. Itg is calculated by transforming tothe frequency domain using FFT, binning the FFT bins into logarithmic bins, performing a log transform of each signal, then transforming back into the signal domain with an inverse FFT, falsely assuming the signal is a linear rather than logarithmic bins.

MFCC history