<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.13"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>aubio: examples/aubiopitch.c</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
extensions: ["tex2jax.js"],
jax: ["input/TeX","output/HTML-CSS"],
});
</script><script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">aubio
 <span id="projectnumber">0.4.2~alpha</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.13 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
</script>
<div id="main-nav"></div>
</div><!-- top -->
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div class="header">
<div class="headertitle">
<div class="title">examples/aubiopitch.c</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><span class="comment">/*</span></div><div class="line"><span class="comment"> Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org></span></div><div class="line"><span class="comment"></span></div><div class="line"><span class="comment"> This file is part of aubio.</span></div><div class="line"><span class="comment"></span></div><div class="line"><span class="comment"> aubio is free software: you can redistribute it and/or modify</span></div><div class="line"><span class="comment"> it under the terms of the GNU General Public License as published by</span></div><div class="line"><span class="comment"> the Free Software Foundation, either version 3 of the License, or</span></div><div class="line"><span class="comment"> (at your option) any later version.</span></div><div class="line"><span class="comment"></span></div><div class="line"><span class="comment"> aubio is distributed in the hope that it will be useful,</span></div><div class="line"><span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div><div class="line"><span class="comment"> GNU General Public License for more details.</span></div><div class="line"><span class="comment"></span></div><div class="line"><span class="comment"> You should have received a copy of the GNU General Public License</span></div><div class="line"><span class="comment"> along with aubio. If not, see <http://www.gnu.org/licenses/>.</span></div><div class="line"><span class="comment"></span></div><div class="line"><span class="comment">*/</span></div><div class="line"></div><div class="line"><span class="preprocessor">#include "utils.h"</span></div><div class="line"><span class="preprocessor">#define PROG_HAS_PITCH 1</span></div><div class="line"><span class="preprocessor">#define PROG_HAS_OUTPUT 1</span></div><div class="line"><span class="preprocessor">#define PROG_HAS_JACK 1</span></div><div class="line"><span class="preprocessor">#include "parse_args.h"</span></div><div class="line"></div><div class="line"><a class="code" href="pitch_8h.html#af76b14582e2b766e6b325038fe6426a0">aubio_pitch_t</a> *o;</div><div class="line"><a class="code" href="wavetable_8h.html#abbf3d07fc6bfec0ababa1e36fa4d2953">aubio_wavetable_t</a> *wavetable;</div><div class="line"><a name="_a0"></a><a class="code" href="structfvec__t.html">fvec_t</a> *pitch;</div><div class="line"></div><div class="line"><span class="keywordtype">void</span> process_block(<a class="code" href="structfvec__t.html">fvec_t</a> * ibuf, <a class="code" href="structfvec__t.html">fvec_t</a> * obuf)</div><div class="line">{</div><div class="line"> <a class="code" href="types_8h.html#a5d7119468d78a1dc35cf76d0adfb1436">smpl_t</a> freq;</div><div class="line"> <a name="a1"></a><a class="code" href="pitch_8h.html#aa813fd341d5af4c0dc672e319b0f0195">aubio_pitch_do</a> (o, ibuf, pitch);</div><div class="line"> <span class="keywordflow">if</span> ( !usejack && ! sink_uri ) <span class="keywordflow">return</span>;</div><div class="line"> <a name="a2"></a><a class="code" href="fvec_8h.html#aab4522ad4c26322858ecce0e7aad08ea">fvec_zeros</a>(obuf);</div><div class="line"> freq = <a name="a3"></a><a class="code" href="fvec_8h.html#ac4adbfa24102a9611e188df7b3da05d0">fvec_get_sample</a>(pitch, 0);</div><div class="line"> <a name="a4"></a><a class="code" href="wavetable_8h.html#ad2a1038f6748551e688fbe328ab14f90">aubio_wavetable_set_amp</a> ( wavetable, <a name="a5"></a><a class="code" href="musicutils_8h.html#a73f016353e3b67941d9d83938d7119de">aubio_level_lin</a> (ibuf) );</div><div class="line"> <a name="a6"></a><a class="code" href="wavetable_8h.html#a1f51931af1a13db4667173aca645d05d">aubio_wavetable_set_freq</a> ( wavetable, freq );</div><div class="line"> <span class="keywordflow">if</span> (mix_input)</div><div class="line"> <a name="a7"></a><a class="code" href="wavetable_8h.html#acb766dead872e20b256117a03a0a54ce">aubio_wavetable_do</a> (wavetable, ibuf, obuf);</div><div class="line"> <span class="keywordflow">else</span></div><div class="line"> <a class="code" href="wavetable_8h.html#acb766dead872e20b256117a03a0a54ce">aubio_wavetable_do</a> (wavetable, obuf, obuf);</div><div class="line">}</div><div class="line"></div><div class="line"><span class="keywordtype">void</span> process_print (<span class="keywordtype">void</span>)</div><div class="line">{</div><div class="line"> <a class="code" href="types_8h.html#a5d7119468d78a1dc35cf76d0adfb1436">smpl_t</a> pitch_found = <a class="code" href="fvec_8h.html#ac4adbfa24102a9611e188df7b3da05d0">fvec_get_sample</a>(pitch, 0);</div><div class="line"> outmsg(<span class="stringliteral">"%f %f\n"</span>,(blocks)</div><div class="line"> *hop_size/(<span class="keywordtype">float</span>)samplerate, pitch_found);</div><div class="line">}</div><div class="line"></div><div class="line"><span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span> **argv) {</div><div class="line"></div><div class="line"> buffer_size = 2048;</div><div class="line"></div><div class="line"> examples_common_init(argc,argv);</div><div class="line"></div><div class="line"> verbmsg (<span class="stringliteral">"using source: %s at %dHz\n"</span>, source_uri, samplerate);</div><div class="line"> verbmsg (<span class="stringliteral">"pitch method: %s, "</span>, pitch_method);</div><div class="line"> verbmsg (<span class="stringliteral">"pitch unit: %s, "</span>, pitch_unit);</div><div class="line"> verbmsg (<span class="stringliteral">"buffer_size: %d, "</span>, buffer_size);</div><div class="line"> verbmsg (<span class="stringliteral">"hop_size: %d, "</span>, hop_size);</div><div class="line"> verbmsg (<span class="stringliteral">"tolerance: %f\n"</span>, pitch_tolerance);</div><div class="line"></div><div class="line"> o = <a name="a8"></a><a class="code" href="pitch_8h.html#a962561ea270e0308ed26ac9bab554550">new_aubio_pitch</a> (pitch_method, buffer_size, hop_size, samplerate);</div><div class="line"> <span class="keywordflow">if</span> (pitch_tolerance != 0.)</div><div class="line"> <a name="a9"></a><a class="code" href="pitch_8h.html#ac7f0342944d7fde3cd509021069ee74d">aubio_pitch_set_tolerance</a> (o, pitch_tolerance);</div><div class="line"> <span class="keywordflow">if</span> (silence_threshold != -90.)</div><div class="line"> <a name="a10"></a><a class="code" href="pitch_8h.html#afc207da0622a9cedb601a3b84b3fd543">aubio_pitch_set_silence</a> (o, silence_threshold);</div><div class="line"> <span class="keywordflow">if</span> (pitch_unit != NULL)</div><div class="line"> <a name="a11"></a><a class="code" href="pitch_8h.html#aa4fa64844cbcedd81127643e0093103c">aubio_pitch_set_unit</a> (o, pitch_unit);</div><div class="line"></div><div class="line"> pitch = <a name="a12"></a><a class="code" href="fvec_8h.html#aa9bc0906651523429a4ebf7b4342fe73">new_fvec</a> (1);</div><div class="line"></div><div class="line"> wavetable = <a name="a13"></a><a class="code" href="wavetable_8h.html#ae1433850799b37ef1c13772b8a5d332b">new_aubio_wavetable</a> (samplerate, hop_size);</div><div class="line"> <a name="a14"></a><a class="code" href="wavetable_8h.html#aeb76a5d89b91b509b297ea480a1b7b2a">aubio_wavetable_play</a> ( wavetable );</div><div class="line"></div><div class="line"> examples_common_process((aubio_process_func_t)process_block,process_print);</div><div class="line"></div><div class="line"> <a name="a15"></a><a class="code" href="pitch_8h.html#a23f6b16eabb9bff3c4ee5876af69f832">del_aubio_pitch</a> (o);</div><div class="line"> <a name="a16"></a><a class="code" href="wavetable_8h.html#aef974c1cee018f29d8b61c12a430b63a">del_aubio_wavetable</a> (wavetable);</div><div class="line"> <a name="a17"></a><a class="code" href="fvec_8h.html#a86fad6d27aad91c910d1b48195922cb9">del_fvec</a> (pitch);</div><div class="line"></div><div class="line"> examples_common_del();</div><div class="line"> <span class="keywordflow">return</span> 0;</div><div class="line">}</div><div class="line"></div></div><!-- fragment --> </div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by  <a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.13
</small></address>
</body>
</html>
