/* Copyright (C) 2007 Amaury Hazan and Paul Brossier This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* part of this mfcc implementation were inspired from LibXtract http://libxtract.sourceforge.net/ */ #ifndef MFCC_H #define MFCC_H #ifdef __cplusplus extern "C" { #endif typedef struct aubio_mfcc_t_ aubio_mfcc_t; /** create mfcc object \param win_s size of analysis buffer (and length the FFT transform) \param samplerate \param n_coefs: number of desired coefs */ aubio_mfcc_t * new_aubio_mfcc (uint_t win_s, uint_t samplerate, uint_t n_filters, uint_t n_coefs); /** delete mfcc object \param mf mfcc object as returned by new_aubio_mfcc */ void del_aubio_mfcc(aubio_mfcc_t *mf); /** mfcc object processing \param mf mfcc object as returned by new_aubio_mfcc \param in input spectrum (win_s long) \param out output mel coefficients buffer (n_filters/2 +1 long) */ void aubio_mfcc_do(aubio_mfcc_t * mf, cvec_t *in, fvec_t *out); #ifdef __cplusplus } #endif #endif // MFCC_H