@audio/spectral-mfcc

MFCC — mel-frequency cepstral coefficients: FFT → mel filterbank (triangular, Davis & Mermelstein 1980) → log → DCT-II.

npm install @audio/spectral-mfcc

import mfcc from '@audio/spectral-mfcc'

let coeffs = mfcc(frame, { fs: 44100 })   // Float32Array(13), frame.length a power of 2

Options: - fs — sample rate (default 44100, Hz) · bins — number of cepstral coefficients returned (default 13) · nMel — mel filterbank size (default 40) · fmin — filterbank low edge (default 0, Hz) · fmax — filterbank high edge (default fs / 2, Hz)

Part of @audio/spectral.