source: src/pitch/pitchmcomb.h @ 168337e

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since 168337e was 168337e, checked in by Paul Brossier <piem@piem.org>, 14 years ago

src/pitch: switch to mono

  • Property mode set to 100644
File size: 2.1 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 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*/
35
36#ifndef PITCHMCOMB_H
37#define PITCHMCOMB_H
38
39#ifdef __cplusplus
40extern "C" {
41#endif
42
43/** pitch detection object */
44typedef struct _aubio_pitchmcomb_t aubio_pitchmcomb_t;
45
46/** execute pitch detection on an input spectral frame
47 
48  \param p pitch detection object as returned by new_aubio_pitchmcomb
49  \param fftgrain input signal spectrum as computed by aubio_pvoc_do
50 
51*/
52void aubio_pitchmcomb_do (aubio_pitchmcomb_t * p, cvec_t * fftgrain,
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  \param samplerate sampling rate of the signal
60 
61*/
62aubio_pitchmcomb_t *new_aubio_pitchmcomb (uint_t buf_size, uint_t hop_size);
63
64/** deletion of the pitch detection object
65 
66  \param p pitch detection object as returned by new_aubio_pitchfcomb
67 
68*/
69void del_aubio_pitchmcomb (aubio_pitchmcomb_t * p);
70
71#ifdef __cplusplus
72}
73#endif
74
75#endif/*PITCHMCOMB_H*/ 
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