Application of SPA to MEL Bank analysis

MEL bank analysis is the first step in MEL frequency cepstral coefficient (MFCC) analysis. For more information about MEL bank analysis, see Section 5.2.6. The method of Section 5.2.1 applied to MEL bank analysis is implemented by software/module_mel_bank.m with method='spa', and tested by software/module_mel_bank_test.m with method='spa'.

Baggenstoss 2017-05-19