cepstrum

listen to the pronunciation of cepstrum
İngilizce - Türkçe
Kepstrum

Kepstrum (cepstrum) tabanlı yöntemler.

İngilizce - İngilizce
The Fourier transform of the logarithm of a spectrum; used especially in voice analysis
1. Coined in a 1963 paper by Bogert, Healey, and Tukey. It is the Fourier transform of the log-magnitude spectrum. This function is used in speech recognition and possibly elsewhere.2. The cepstrum is a common transform used to gain information from a person’s speech signal. It can be used to separate the excitation signal (which contains the words and the pitch) and the transfer function (which contains the voice quality). It is similar to a channel vocoder or LPC in its applications, but using the cepstrum as a spectral analyzer is a completely different process. (It is also worth pointing out that cepstrum is “spectrum” with the first syllable flipped… we will encounter several words with this naming convention.) Before describing the details of the cepstrum, a little background in speech models is needed