source: src/pitch/pitchmcomb.h @ 3a004bbc

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5sampleryinfft+
Last change on this file since 3a004bbc 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
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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 multiple-comb filter
24
25  This fundamental frequency estimation algorithm implements spectral
26  flattening, multi-comb filtering and peak histogramming.
27
28  This method was designed by Juan P. Bello and described in:
29
30  Juan-Pablo Bello. ``Towards the Automated Analysis of Simple Polyphonic
31  Music''.  PhD thesis, Centre for Digital Music, Queen Mary University of
32  London, London, UK, 2003.
33
34  \example pitch/test-pitchmcomb.c
35
36*/
37
38#ifndef AUBIO_PITCHMCOMB_H
39#define AUBIO_PITCHMCOMB_H
40
41#ifdef __cplusplus
42extern "C" {
43#endif
44
45/** pitch detection object */
46typedef struct _aubio_pitchmcomb_t aubio_pitchmcomb_t;
47
48/** execute pitch detection on an input spectral frame
49
50  \param p pitch detection object as returned by new_aubio_pitchmcomb
51  \param in_fftgrain input signal spectrum as computed by aubio_pvoc_do
52  \param out_cands pitch candidate frequenciess, in bins
53
54*/
55void aubio_pitchmcomb_do (aubio_pitchmcomb_t * p, const cvec_t * in_fftgrain,
56    fvec_t * out_cands);
57
58/** creation of the pitch detection object
59
60  \param buf_size size of the input buffer to analyse
61  \param hop_size step size between two consecutive analysis instant
62
63*/
64aubio_pitchmcomb_t *new_aubio_pitchmcomb (uint_t buf_size, uint_t hop_size);
65
66/** deletion of the pitch detection object
67
68  \param p pitch detection object as returned by new_aubio_pitchfcomb
69
70*/
71void del_aubio_pitchmcomb (aubio_pitchmcomb_t * p);
72
73#ifdef __cplusplus
74}
75#endif
76
77#endif /* AUBIO_PITCHMCOMB_H */
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