cepstrum

<mathematics>

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

 fFt(ln( | fFt(window . signal) | ))
This function is used in speech recognition and possibly elsewhere. Note that the outer transform is NOT an inverse Fourier transform (as reported in many respectable DSP texts).

[What's it for?]

Last updated: 1997-01-07

Nearby terms:

century meltdown ♦ CEN/XFS ♦ cepstra ♦ cepstrum ♦ CEPT ♦ CER ♦ Ceramic Pin Grid Array

Try this search on Wikipedia, Wiktionary, Google, OneLook.

Loading