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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"><html><head> <title>Description of midiFile2pv</title> <meta name="keywords" content="midiFile2pv"> <meta name="description" content="midiFile2pv: Read monophonical midi file to generate PV (pitch vector)"> <meta http-equiv="Content-Type" content="text/html; charset=big5"> <meta name="generator" content="m2html © 2003 Guillaume Flandin"> <meta name="robots" content="index, follow"> <link type="text/css" rel="stylesheet" href="../m2html.css"></head><body><a name="_top"></a><div><a href="../index.html">Home</a> > <a href="index.html">melodyRecognition</a> > midiFile2pv.m</div><!--<table width="100%"><tr><td align="left"><a href="../index.html"><img alt="<" border="0" src="../left.png"> Master index</a></td><td align="right"><a href="index.html">Index for melodyRecognition <img alt=">" border="0" src="../right.png"></a></td></tr></table>--><h1>midiFile2pv</h1><h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>midiFile2pv: Read monophonical midi file to generate PV (pitch vector)</strong></div><h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>function pv=midiFile2pv(midiFile, pitchRate, plotOpt) </strong></div><h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="fragment"><pre class="comment"> midiFile2pv: Read monophonical midi file to generate PV (pitch vector)
Usage: pv=midiFile2pv(midiFile, pitchRate, plotOpt)</pre></div><!-- crossreference --><h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>This function calls:<ul style="list-style-image:url(../matlabicon.gif)"><li><a href="note2mid.html" class="code" title="function [mid, ti] = note2mid(note, midTimeUnit, duration, plotOpt)">note2mid</a> note2mid: note to mid conversion</li></ul>This function is called by:<ul style="list-style-image:url(../matlabicon.gif)"></ul><!-- crossreference --><h2><a name="_subfunctions"></a>SUBFUNCTIONS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><ul style="list-style-image:url(../matlabicon.gif)"><li><a href="#_sub1" class="code">function selfdemo</a></li></ul><h2><a name="_source"></a>SOURCE CODE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="fragment"><pre>0001 <a name="_sub0" href="#_subfunctions" class="code">function pv=midiFile2pv(midiFile, pitchRate, plotOpt)</a>0002 <span class="comment">% midiFile2pv: Read monophonical midi file to generate PV (pitch vector)</span>0003 <span class="comment">% Usage: pv=midiFile2pv(midiFile, pitchRate, plotOpt)</span>0004 0005 <span class="comment">% Roger Jang, 20060807</span>0006 0007 <span class="keyword">if</span> nargin<1, <a href="#_sub1" class="code" title="subfunction selfdemo">selfdemo</a>, <span class="keyword">return</span>; <span class="keyword">end</span>0008 <span class="keyword">if</span> nargin<3, plotOpt=0; <span class="keyword">end</span>0009 0010 <span class="comment">% Fields for nmat:</span>0011 <span class="comment">% ?????}?l?????]???l?^?B???????⊙?]???l?^?B?y???B???q?B?????}?l?????]?????^?B???????⊙?]?????^</span>0012 nmat = readmidi(midiFile);0013 k=1;0014 note(k).pitch=nmat(1, 4);0015 note(k).duration=nmat(1,7);0016 <span class="keyword">for</span> i=2:size(nmat, 1);0017 <span class="comment">% ?Y?????n?A???J??????</span>0018 timeDiff=nmat(i,6)-nmat(i-1,6);0019 restDuration=timeDiff-nmat(i-1,7);0020 <span class="keyword">if</span> restDuration>1e-6 <span class="comment">% ⌨️ 快捷键说明
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