in case anyone else is confused - it (a cepstrum) is the ft of the log of the modulus of an ft. the ft of an ft is the original signal. https://en.wikipedia.or

in case anyone else is confused - it (a cepstrum) is the ft of the log of the modulus of an ft. the ft of an ft is the original signal. https://en.wikipedia.org/wiki/Cepstrum https://en.wikipedia.org/wiki/Cepstrum