source: src/spectral/mfcc.h @ ad5203c

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since ad5203c was 8a5c8ba, checked in by Paul Brossier <piem@piem.org>, 12 years ago

src/spectral/: add examples

  • Property mode set to 100644
File size: 1.7 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/** \file
23
24  Mel-frequency cepstrum coefficients object
25
26  \example spectral/test-mfcc.c
27
28*/
29
30#ifndef MFCC_H
31#define MFCC_H
32
33#ifdef __cplusplus
34extern "C"
35{
36#endif
37
38/** mfcc object */
39typedef struct _aubio_mfcc_t aubio_mfcc_t;
40
41/** create mfcc object
42
43  \param buf_size size of analysis buffer (and length the FFT transform)
44  \param samplerate audio sampling rate
45  \param n_coeffs number of desired coefficients
46  \param n_filters number of desired filters
47
48*/
49aubio_mfcc_t *new_aubio_mfcc (uint_t buf_size,
50    uint_t n_filters, uint_t n_coeffs, uint_t samplerate);
51
52/** delete mfcc object
53
54  \param mf mfcc object as returned by new_aubio_mfcc
55
56*/
57void del_aubio_mfcc (aubio_mfcc_t * mf);
58
59/** mfcc object processing
60
61  \param mf mfcc object as returned by new_aubio_mfcc
62  \param in input spectrum (buf_size long)
63  \param out output mel coefficients buffer (n_coeffs long)
64
65*/
66void aubio_mfcc_do (aubio_mfcc_t * mf, cvec_t * in, fvec_t * out);
67
68#ifdef __cplusplus
69}
70#endif
71
72#endif                          // MFCC_H
Note: See TracBrowser for help on using the repository browser.