cepstrum

[′sep·trəm] (acoustics) The Fourier transform of the logarithm of a speech power spectrum; used to separate vocal tract information from pitch excitation in voiced speech.

cepstrum

(mathematics)(Coined in a 1963 paper by Bogert, Healey, andTukey) The Fourier transform of the log-magnitude spectrum:

fFt(ln( | fFt(window . signal) | ))

This function is used in speech recognition and possiblyelsewhere. Note that the outer transform is NOT an inverseFourier transform (as reported in many respectable DSP texts).

单词	cepstrum
释义	cepstrum cepstrum [′sep·trəm] (acoustics) The Fourier transform of the logarithm of a speech power spectrum; used to separate vocal tract information from pitch excitation in voiced speech. cepstrum (mathematics)(Coined in a 1963 paper by Bogert, Healey, andTukey) The Fourier transform of the log-magnitude spectrum: fFt(ln( \| fFt(window . signal) \| )) This function is used in speech recognition and possiblyelsewhere. Note that the outer transform is NOT an inverseFourier transform (as reported in many respectable DSP texts).
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