Mel frequency cepstral coefficient
From Free net encyclopedia
Mel Frequency Cepstral Coefficients (MFCCs) are coefficients that represent audio, based on perception. It is derived from the Fourier Transform or the Discrete Cosine Transform of the audio clip. The basic difference between the FFT/DCT and the MFCC is that in the MFCC, the frequency bands are positioned logarithmically (on the mel scale) which approximates the human auditory system's response more closely than the linearly spaced frequency bands of FFT or DCT. This allows for better processing of data, for example, in audio compression.
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