Cepstrum Smoothing

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Computes the averaged cepstrum smoothed amplitude spectrum, via the inverse transform of the lowpass filtered cepstrum.

V3 method ceptrum smoothing.png

coefs.
Number of cepstrum coefficients which should be used to compute the smoothed spectrum. If this value is set to zero the number of cepstrum coefficients is set to: lfrm0.5 (with: lfrm = frame length in samples).
offset
Amplitude offset to be added to the smoothed spectrum.
sp – cp (LOFAR)
Compute and display the difference "spectrum – smoothed spectrum".