Python’s wavelet lib pywt hasn’t implemented wavelet reconstruction function yet, which is wrcoef in Matlab.
Here is a Python version.
Using white noise excitation to substitute for the missing phase information.
We need to undo the DCT, the logamplitude, the Mel mapping, and the STFT.
I choose Hidden Markov Model (HMM) for my BirdSong-Recognition Project.
An important feature we often use in Speech Analysis is Mel-Frequency Cepstral Coefficients（MFCC）.
MMSE-LSA(minimum mean-square error log-spectral amplitude estimator) is a classic method to enhance speech signal.