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14<h1 align="left">AXGetLpfCoefs</h1>
15
16<h2>Syntax</h2>
17<dl><dd><pre class="construction">
18#include &lt;revolution/ax.h&gt;
19
20void AXGetLpfCoefs(u16 freq, u16 *a0, u16 *b0);
21</pre></dd></dl>
22
23<h2>Arguments</h2>
24<TABLE class="arguments" border="1" >
25  <tr>
26<th>freq</th>
27<td>Cut-off frequency of the low-pass filter in Hertz (Hz), must be within the range 0 &lt;= <SPAN class="argument">freq</SPAN> &lt;= 16,000.</td>
28  </tr>
29  <tr>
30<th>a0</th>
31<td>Pointer to the coefficient <SPAN class="argument">a0</SPAN>.</td>
32  </tr>
33  <tr>
34<th>b0</th>
35<td>Pointer to the coefficient <SPAN class="argument">b0</SPAN>.</td>
36  </tr>
37</table>
38
39<h2>Return Values</h2>
40<P>None.</P>
41
42<h2>Description</h2>
43<P><CODE>AXGetLpfCoefs</CODE> gets the values <SPAN class="argument">a0</SPAN> and <SPAN class="argument">b0</SPAN>. <SPAN class="argument">a0</SPAN> and <SPAN class="argument">b0</SPAN> can be passed to the <A href="../Voice_Parameters/AXSetVoiceLpfCoefs.html"><CODE>AXSetVoiceLpfCoefs</CODE></A> function or used as low-pass filter coefficients when setting the <A href="../Parameter_Blocks/AXPBLPF_lpf.html"><CODE>AXPBLPF</CODE></A> structure.</P>
44<P><code>AXGetLpfCoefs</code> does the same calculation that is shown in the <A href="../Parameter_Blocks/AXPBLPF_lpf.html"><CODE>AXPBLPF</CODE></A> structure page.</P>
45
46<h2>See Also</h2>
47<p class="reference">
48<a href="../Parameter_Blocks/AXPBLPF_lpf.html">axvpb.pb.lpf</a><BR><a href="../Voice_Parameters/AXSetVoiceLpf.html">AXSetVoiceLpf</a><BR><a href="../Voice_Parameters/AXSetVoiceLpfCoefs.html">AXSetVoiceLpfCoefs</a>
49</p>
50
51<H2>Revision History</H2>
52<P>
532006/03/01 Initial version.<BR>
54</P>
55
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