source: src/spectral/mfcc.h @ e03f74d

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since e03f74d was e03f74d, checked in by Paul Brossier <piem@piem.org>, 11 years ago

src/spectral/mfcc.h: remove obsolete reference to libxtract, update copyright and license to GPLv3, indent

  • Property mode set to 100644
File size: 1.6 KB
Line 
1/*
2   Copyright (C) 2007-2009 Paul Brossier <piem@aubio.org>
3                       and Amaury Hazan <ahazan@iua.upf.edu>
4
5   This file is part of Aubio.
6
7   Aubio is free software: you can redistribute it and/or modify
8   it under the terms of the GNU General Public License as published by
9   the Free Software Foundation, either version 3 of the License, or
10   (at your option) any later version.
11
12   Aubio is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with Aubio.  If not, see <http://www.gnu.org/licenses/>.
19
20*/
21
22#ifndef MFCC_H
23#define MFCC_H
24
25#ifdef __cplusplus
26extern "C"
27{
28#endif
29
30typedef struct aubio_mfcc_t_ aubio_mfcc_t;
31
32/** create mfcc object
33
34  \param win_s size of analysis buffer (and length the FFT transform)
35  \param samplerate audio sampling rate
36  \param n_coefs number of desired coefficientss
37
38*/
39aubio_mfcc_t *new_aubio_mfcc (uint_t win_s, uint_t samplerate,
40      uint_t n_filters, uint_t n_coefs);
41
42/** delete mfcc object
43
44  \param mf mfcc object as returned by new_aubio_mfcc
45
46*/
47void del_aubio_mfcc (aubio_mfcc_t * mf);
48
49/** mfcc object processing
50
51  \param mf mfcc object as returned by new_aubio_mfcc
52  \param in input spectrum (win_s long)
53  \param out output mel coefficients buffer (n_coeffs long)
54
55*/
56void aubio_mfcc_do (aubio_mfcc_t * mf, cvec_t * in, fvec_t * out);
57
58#ifdef __cplusplus
59}
60#endif
61
62#endif                          // MFCC_H
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