Cepstrum

Cepstrum Calculation of Rational Function H(z)

Cepstrum Calculation of Rational Function H(z)
  1. How do you calculate cepstrum?
  2. What is cepstrum analysis?

How do you calculate cepstrum?

The real cepstrum of a signal x, sometimes called simply the cepstrum, is calculated by determining the natural logarithm of magnitude of the Fourier transform of x, then obtaining the inverse Fourier transform of the resulting sequence: c x = 1 2 π ∫ - π π log | X ( e j ω ) | e j ω n d ω .

What is cepstrum analysis?

Cepstrum Analysis is a tool for the detection of periodicity in a frequency spectrum, and seems so far to have been used mainly in speech analysis for voice pitch determination and related questions.

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