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<title> filter </title>
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<h2>filter</h2><p>

<b>Syntax</b><br>
<ul>
<li> <b>Cutoff - filter:</b> <kbd>filter &lt;nrise&gt &lt;ncut&gt</kbd>
<li> <b>Gaussian filter:</b> <kbd>filter &lt;nrise&gt &lt;ncut&gt &lt;width&gt gauss</kbd>
<li> <b>Boxcar filter:</b>   <kbd>filter &l