MFCC的討論

MFCC python plot
https://blog.csdn.net/m0_37052320/article/details/80743906

How to plot MFCC in Python?
https://stackoverflow.com/questions/43506198/how-to-plot-mfcc-in-python

Speech Processing for Machine Learning: Filter banks, Mel-Frequency Cepstral Coefficients (MFCCs) and What's In-Between
https://haythamfayek.com/2016/04/21/speech-processing-for-machine-learning.html#fnref:1