source: src/pitch/pitchfcomb.h @ c3d286c

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since c3d286c was 168337e, checked in by Paul Brossier <piem@piem.org>, 15 years ago

src/pitch: switch to mono

  • Property mode set to 100644
File size: 2.0 KB
Line 
1/*
2  Copyright (C) 2003-2009 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*/
34
35#ifndef _PITCHFCOMB_H
36#define _PITCHFCOMB_H
37
38#ifdef __cplusplus
39extern "C" {
40#endif
41
42/** pitch detection object */
43typedef struct _aubio_pitchfcomb_t aubio_pitchfcomb_t;
44
45/** execute pitch detection on an input buffer
46 
47  \param p pitch detection object as returned by new_aubio_pitchfcomb
48  \param input input signal window (length as specified at creation time)
49  \param output pitch candidates in bins
50 
51*/
52void aubio_pitchfcomb_do (aubio_pitchfcomb_t * p, fvec_t * input,
53    fvec_t * output);
54
55/** creation of the pitch detection object
56 
57  \param buf_size size of the input buffer to analyse
58  \param hop_size step size between two consecutive analysis instant
59 
60*/
61aubio_pitchfcomb_t *new_aubio_pitchfcomb (uint_t buf_size, uint_t hop_size);
62
63/** deletion of the pitch detection object
64 
65  \param p pitch detection object as returned by new_aubio_pitchfcomb
66 
67*/
68void del_aubio_pitchfcomb (aubio_pitchfcomb_t * p);
69
70#ifdef __cplusplus
71}
72#endif
73
74#endif /* _PITCHFCOMB_H */
75
76
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