pysptk.sptk.amcep¶
- pysptk.sptk.amcep(x, b, alpha=0.35, lambda_coef=0.98, step=0.1, tau=0.9, pd=4, eps=1e-06)[source]¶
Adaptive mel-cepstral analysis
- Parameters
- xfloat
A input sample
- barray, shape(
order + 1
), optional MLSA filter coefficients. The result is stored in-place.
- alphafloat, optional
All-pass constant. Default is 0.35.
- lambda_coeffloat, optional
Leakage factor. Default is 0.98.
- stepfloat, optional
Step size. Default is 0.1.
- taufloat, optional
Momentum constant. Default is 0.9.
- pdint, optional
Order of pade approximation. Default is 4.
- epsfloat, optional
Minimum value for epsilon. Default is 1.0e-6.
- Returns
- prederrfloat
Prediction error
- Raises
- ValueError
if invalid order of pade approximation is specified