1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
2<html>
3
4<head>
5<LINK rel="stylesheet" type="text/css" href="../../CSS/revolution.css">
6<title>AXART_LPF</title>
7<META http-equiv="Content-Type" content="text/html; charset=windows-1252">
8<META http-equiv="Content-Style-Type" content="text/css">
9</head>
10
11<body>
12
13<h1 align="left">AXART_LPF</h1>
14
15<h2>Syntax</h2>
16<dl><dd><pre class="construction">
17#include &lt;revolution.h&gt;
18#include &lt;revolution/axart.h&gt;
19
20typedef struct
21{
22    AXART_ART   art;
23    u32         initLPF;
24
25    // runtime user parameters
26
27    u32         frequency;
28    u32         update;
29
30} AXART_LPF;
31</pre></dd></dl>
32
33<h2>Elements</h2>
34<TABLE class="arguments" border="1" >
35  <tr>
36<th>art</th>
37<td>AXART articulator descriptor maintained by AXART. Do not write to this parameter.</td>
38  </tr>
39  <TR>
40<TH>initLPF</TH>
41<TD>Structure member flag that indicates the low pass filter was initialized. Do not write to this parameter.</TD>
42  </TR>
43  <tr>
44<th>frequency</th>
45<td>Indexed roll-off frequency (from 0 = 16000Hz  to  32 = 80Hz). The indexed values are defined in the <CODE>axart.h</CODE> header file.</td>
46  </tr>
47  <tr>
48<th>update</th>
49<td>Must be set to <CODE>TRUE</CODE> for updated indexed roll-off frequency values to take effect.</td>
50  </tr>
51</TABLE>
52
53<h2>Description</h2>
54<p><code>AXART_LPF</code> is a data structure used to describe a low pass filter sound articulator. This articulator sets the low pass filter roll-off frequency for an <code>AXART_SOUND</code>. Prior to calling the <code>AXARTAddArticulator</code> function, the user application must call the <code>AXARTInitArtLpf</code> function for the <code>AXART_LPF</code>.</p>
55
56<h2>See Also</h2>
57<p class="reference">
58<a href="AXARTInitArtLpf.html">AXARTInitArtLpf</a>, <a href="AXARTAddArticulator.html">AXARTAddArticulator</a>, <a href="AXART_ART.html">AXART_ART</a>, <a href="AXART_SOUND.html">AXART_SOUND</a>
59</p>
60
61<H2>Revision History</H2>
62<P>
632006/03/01 Initial version.<br>
64</P>
65
66<hr><p>CONFIDENTIAL</p></body>
67</html>
68