1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2<html xml:lang="en-US" lang="en-US" xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 5 <meta http-equiv="Content-Style-Type" content="text/css" /> 6 <link rel="stylesheet" href="../../../../css/manpage.css" type="text/css" /> 7<title>SetMonoFilterCoefficients</title> 8 </head> 9 <body> 10<h1><CODE><a href="../../../../nn/Overview.html">nn</a>::<a href="../../../../nn/snd/Overview.html">snd</a>::<a href="../../../../nn/snd/CTR/Overview.html">CTR</a>::<a href="../../../../nn/snd/CTR/Voice/Overview.html">Voice</a>::SetMonoFilterCoefficients</CODE> Member Function</h1> 11<h2>Syntax</h2> 12 <div class="section"> 13 <pre class="definition"> 14void SetMonoFilterCoefficients( 15 const <a href="../../../../nn/snd/CTR/MonoFilterCoefficients/Overview.html">MonoFilterCoefficients</a> & coeff 16); 17 18void SetMonoFilterCoefficients( 19 <a href="../../../../nn_types/u16.html">u16</a> cutoff 20); 21</pre> 22 </div> 23<h2>List of Overloaded Member Functions</h2> 24 <div class="section"> 25 <table class="members"> 26 <tr> 27 <td> 28<a href="./SetMonoFilterCoefficients(0).html">SetMonoFilterCoefficients ( const MonoFilterCoefficients & ) </a> 29 </td> 30<td>Sets the coefficients for a monopole filter.</td> 31 </tr> 32 <tr> 33 <td> 34<a href="./SetMonoFilterCoefficients(1).html"><CODE>SetMonoFilterCoefficients(u16)</CODE> </a> 35 </td> 36<td>Configures a monopole low-pass filter with the specified cut-off frequency.</td> 37 </tr> </table> 38 </div> 39<h2>Description of SetMonoFilterCoefficients(const MonoFilterCoefficients &)</h2> 40 <div class="section"><p> 41The monopole filter output can be represented as follows. 42</p><p><pre>y(n) = n0 * x(n) - d0 * y(n-1)</pre></p><p> 43The coefficients can all be specified as Q15-format 16-bit integers, comprising a 1-bit integer portion and a 15-bit fractional portion. Sounds may be clipped if the filter gain is higher than 1. 44 </p></div> 45<h2>Description of <CODE>SetMonoFilterCoefficients(u16)</CODE></h2> 46 <div class="section"><p> 47The cut-off frequency, <CODE>cutoff</CODE>, is designed from the monopole filter and configured to <CODE>Voice</CODE>. <CODE>cutoff</CODE> must fall within the range 0 <= <CODE>cutoff</CODE> <= 16,000. 48 </p></div> 49 <hr><p>CONFIDENTIAL</p></body> 50</html> 51