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14<h1 align="left">AXSetVoiceLpfCoefs</h1>
15
16<h2>Syntax</h2>
17<dl><dd><pre class="construction">
18#include &lt;revolution/ax.h&gt;
19
20void AXSetVoiceLpfCoefs(AXVPB *pvpb, u16 a0, u16 b0);
21</pre></dd></dl>
22
23<h2>Arguments</h2>
24<TABLE class="arguments" border="1" >
25  <tr>
26<TH>pvpb</TH>
27<TD>Pointer to the specified voice.</TD>
28  </tr>
29  <tr>
30<TH>a0</TH>
31<TD>Fixed-point (one bit integer, 15 bits fraction) coefficient.</TD>
32  </tr>
33  <tr>
34<TH>b0</TH>
35<TD>Fixed-point (one bit integer, 15 bits fraction) coefficient.</TD>
36  </tr>
37</TABLE>
38
39<h2>Return Values</h2>
40<p>None.</p>
41
42<h2>Description</h2>
43<p>The <code>AXSetVoiceLpfCoefs</code> function sets new low-pass filter coefficients while a voice is running. This function also asserts the synchronization flag corresponding to <code>axvpb.sync</code>.</p>
44<P>Use the <code>AXSetVoiceLpf</code> function to activate or deactivate the low-pass filter.</P>
45<P>See the low-pass filter parameter block definition (<a href="../Parameter_Blocks/AXPBLPF_lpf.html"><code>axvpb.pb.lpf</code></a>) for details on generating coefficients. Or you can get the coefficients of your specified cut-off frequency by using the <a href="../Utility/AXGetLpfCoefs.html"><code>AXGetLpfCoefs</code></a> function.</P>
46
47<h2>See Also</h2>
48<p class="reference">
49<a href="../Parameter_Blocks/AXPBLPF_lpf.html">axvpb.pb.lpf</a>, <a href="AXSetVoiceLpf.html">AXSetVoiceLpf</a>, <a href="../Utility/AXGetLpfCoefs.html">AXGetLpfCoefs</a>
50</p>
51
52<h2>Revision History</h2>
53<P>
542006/03/01 Initial version.<br>
55</P>
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