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<span class="refentrytitle">valpass</span>
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<p>valpass —
Variably reverberates an input signal with a flat frequency response.
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<div class="refsect1" title="Description">
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<h2>Description</h2>
<p>
Variably reverberates an input signal with a flat frequency response.
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<div class="refsect1" title="Syntax">
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<h2>Syntax</h2>
<pre class="synopsis">ares <span class="command"><strong>valpass</strong></span> asig, krvt, xlpt, imaxlpt [, iskip] [, insmps]</pre>
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<h2>Initialization</h2>
<p>
<span class="emphasis"><em>imaxlpt</em></span> -- maximum loop time for <span class="emphasis"><em>klpt</em></span>
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<p>
<span class="emphasis"><em>iskip</em></span> (optional, default=0) -- initial disposition of delay-loop data space (cf. <a class="link" href="reson.html" title="reson"><em class="citetitle">reson</em></a>). The default value is 0.
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<span class="emphasis"><em>insmps</em></span> (optional, default=0) -- delay amount, as a number of samples.
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<div class="refsect1" title="Performance">
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<h2>Performance</h2>
<p>
<span class="emphasis"><em>krvt</em></span> -- the reverberation time (defined as the time in seconds for a signal to decay to 1/1000, or 60dB down from its original amplitude).
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<p>
<span class="emphasis"><em>xlpt</em></span> -- variable loop time in seconds, same as <span class="emphasis"><em>ilpt</em></span> in <span class="emphasis"><em>comb</em></span>. Loop time can be as large as <span class="emphasis"><em>imaxlpt</em></span>.
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<p>
This filter reiterates input with an echo density determined by loop time <span class="emphasis"><em>xlpt</em></span>. The attenuation rate is independent and is determined by <span class="emphasis"><em>krvt</em></span>, the reverberation time (defined as the time in seconds for a signal to decay to 1/1000, or 60dB down from its original amplitude). Its output will begin to appear immediately.
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<div class="refsect1" title="See Also">
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<h2>See Also</h2>
<p>
<a class="link" href="alpass.html" title="alpass"><em class="citetitle">alpass</em></a>,
<a class="link" href="comb.html" title="comb"><em class="citetitle">comb</em></a>,
<a class="link" href="reverb.html" title="reverb"><em class="citetitle">reverb</em></a>,
<a class="link" href="vcomb.html" title="vcomb"><em class="citetitle">vcomb</em></a>
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<div class="refsect1" title="Credits">
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<h2>Credits</h2>
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<td>Author: William <span class="quote">“<span class="quote">Pete</span>”</span> Moss</td>
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<td>University of Texas at Austin</td>
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<td>Austin, Texas USA</td>
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<td>January 2002</td>
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