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13<h1>SND_CalcTimer <IMG src="../image/NTR.gif" width="24" height="12" border="0" align=middle><IMG src="../image/TWL.gif" width="24" height="12" border="0" align=middle></h1>
14<h2>Syntax</h2>
15<dl>
16<dd><pre class="funcsynopsisinfo"><code>#include &lt;nitro/snd.h&gt;</code></pre></dd>
17<dd><pre class="funcprototype"><code class="funcprototype">u16 SND_CalcTimer( int <var>orgTimer</var>, int <var>pitch</var> );</code><br></pre></dd>
18</dl>
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20      <h2>Arguments</h2>
21
22      <div class="variablelist">
23<table border="0">
24<col align="left" valign="top">
25<tbody>
26<tr>
27<td><em><strong><font face="Courier New">orgTimer</font></strong></em></td>
28<td>The original timer value.</td>
29</tr>
30<tr>
31<td><em><strong><font face="Courier New">pitch</font></strong></em></td>
32<td>The pitch-change value.</td>
33</tr>
34</tbody>
35</table>
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38    </div>
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40      <h2>Return Values</h2>
41
42      <p>The timer value after pitch conversion.</p>
43    </div>
44<div class="refsection" lang="ja"><a name="IDAXMWT"></a>
45      <h2>Description</h2>
46      <p>
47Calculates the timer value after pitch conversion.
48</p>
49      <p>
50When the pitch-conversion value <code>pitch</code> is a positive number, the timer cycle speeds up. When it is negative, the time cycle slows down. Pitch changes by exactly a half-tone when value is set to 64. In other words, timer frequency =  2 ** ( 1 / 12 ) tone.
51</p>
52      <p>
53The calculation is performed using the following equation:
54</p>
55      <pre class="programlisting"><em><strong><code>orgTimer</code></strong></em> &divide; (2 ** ( <em><strong><code>pitch</code></strong></em> / ( 64 &times; 12 ) ) )</pre>
56    </div>
57<h2>See Also</h2>
58<p>None.</p>
59<h2>Revision History</h2>
60<p>2004/07/20 Initial version.</p>
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62<hr><p>CONFIDENTIAL</p></body>
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