Meta information
pysptk.sptk.
c2ndps
Cepstrum to Negative Derivative of Phase Spectrum (NDPS)
Cepstrum
FFT length. Default is 256.
fftlen // 2 + 1
NDPS
if non power of 2 fftlen is specified
fftlen
See also
pysptk.sptk.mgcep
pysptk.sptk.ndps2c