pysptk.sptk.mgc2sp¶
-
pysptk.sptk.
mgc2sp
(ceps, alpha=0.0, gamma=0.0, fftlen=256)[source]¶ Mel-generalized cepstrum transform
Parameters: - ceps : array
Mel-generalized cepstrum.
- alpha : float, optional
All-pass constant. Default is 0.0.
- gamma : float, optional
Gamma. Default is 0.0.
- fftlen : int, optional
FFT length. Default is 256.
Returns: - sp : array, shape (
fftlen // 2 + 1
) Complex spectrum log_e(H(ω))
Warning
There’s no equivalent option
o
in SPTK’s mgc2sp. You have to normalize spectrum manually if needed.Raises: - ValueError
- if invalid
gamma
is specified - if non power of 2
fftlen
is specified
- if invalid