source: src/pitch/pitchfcomb.h @ c4b6b59

feature/cnn_orgfeature/crepe_org
Last change on this file since c4b6b59 was 6f42c16, checked in by Paul Brossier <piem@piem.org>, 9 years ago

src/: change c header identifiers (see #35)

  • Property mode set to 100644
File size: 2.1 KB
Line 
1/*
2  Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org>
3
4  This file is part of aubio.
5
6  aubio is free software: you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
10
11  aubio is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  GNU General Public License for more details.
15
16  You should have received a copy of the GNU General Public License
17  along with aubio.  If not, see <http://www.gnu.org/licenses/>.
18
19*/
20
21/** \file
22
23   Pitch detection using a fast harmonic comb filter
24
25   This pitch extraction method implements a fast harmonic comb filter to
26   determine the fundamental frequency of a harmonic sound.
27
28   This file was derived from the tuneit project, written by Mario Lang to
29   detect the fundamental frequency of a sound.
30
31   See http://delysid.org/tuneit.html
32
33   \example pitch/test-pitchfcomb.c
34
35*/
36
37#ifndef AUBIO_PITCHFCOMB_H
38#define AUBIO_PITCHFCOMB_H
39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/** pitch detection object */
45typedef struct _aubio_pitchfcomb_t aubio_pitchfcomb_t;
46
47/** execute pitch detection on an input buffer
48
49  \param p pitch detection object as returned by new_aubio_pitchfcomb
50  \param input input signal window (length as specified at creation time)
51  \param output pitch candidates in bins
52
53*/
54void aubio_pitchfcomb_do (aubio_pitchfcomb_t * p, const fvec_t * input,
55    fvec_t * output);
56
57/** creation of the pitch detection object
58
59  \param buf_size size of the input buffer to analyse
60  \param hop_size step size between two consecutive analysis instant
61
62*/
63aubio_pitchfcomb_t *new_aubio_pitchfcomb (uint_t buf_size, uint_t hop_size);
64
65/** deletion of the pitch detection object
66
67  \param p pitch detection object as returned by new_aubio_pitchfcomb
68
69*/
70void del_aubio_pitchfcomb (aubio_pitchfcomb_t * p);
71
72#ifdef __cplusplus
73}
74#endif
75
76#endif /* AUBIO_PITCHFCOMB_H */
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