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| author | Ludvig Gunne Lindström <ludviggunnelindstrom@gmail.com> | 2026-07-17 11:43:24 +0200 |
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| committer | Ludvig Gunne Lindström <ludviggunnelindstrom@gmail.com> | 2026-11-08 14:15:04 +0100 |
| commit | 039847a29868d335c08fe0a587260dffc71ca5c4 (patch) | |
| tree | e9d775090fef45ca51db576779fb373040d50e6a /doc/modules/biquad.html | |
| download | melisma-modules-main.tar.gz | |
Diffstat (limited to 'doc/modules/biquad.html')
| -rw-r--r-- | doc/modules/biquad.html | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/doc/modules/biquad.html b/doc/modules/biquad.html new file mode 100644 index 0000000..4f89b1a --- /dev/null +++ b/doc/modules/biquad.html @@ -0,0 +1,189 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" + "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html> +<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> +<head> + <title>Melisma modules</title> + <link rel="stylesheet" href="../ldoc_fixed.css" type="text/css" /> +</head> +<body> + +<div id="container"> + +<div id="product"> + <div id="product_logo"></div> + <div id="product_name"><big><b></b></big></div> + <div id="product_description"></div> +</div> <!-- id="product" --> + + +<div id="main"> + + +<!-- Menu --> + +<div id="navigation"> +<p><a href="/melisma-modules">Back to repository</a></p> +<br/> +<h1>Melisma modules</h1> + + +<ul> + <li><a href="../index.html">Index</a></li> +</ul> + +<h2>Contents</h2> +<ul> +<li><a href="#Class_biquad_lowpass">Class biquad.lowpass </a></li> +</ul> + + +<h2>Modules</h2> +<ul class="nowrap"> + <li><strong>biquad</strong></li> + <li><a href="../modules/expression.html">expression</a></li> + <li><a href="../modules/fs.html">fs</a></li> + <li><a href="../modules/keycallback.html">keycallback</a></li> + <li><a href="../modules/udp.html">udp</a></li> +</ul> +<h2>Classes</h2> +<ul class="nowrap"> + <li><a href="../classes/buffer.html">buffer</a></li> + <li><a href="../classes/delay.html">delay</a></li> + <li><a href="../classes/gain.html">gain</a></li> + <li><a href="../classes/interp.html">interp</a></li> + <li><a href="../classes/ladspa.html">ladspa</a></li> + <li><a href="../classes/mixer.html">mixer</a></li> + <li><a href="../classes/nullsink.html">nullsink</a></li> + <li><a href="../classes/oscil.html">oscil</a></li> + <li><a href="../classes/pan.html">pan</a></li> + <li><a href="../classes/playback.html">playback</a></li> + <li><a href="../classes/sample.html">sample</a></li> + <li><a href="../classes/serial.html">serial</a></li> + <li><a href="../classes/timer.html">timer</a></li> +</ul> + +</div> + +<div id="content"> + +<h1>Module <code>biquad</code></h1> +<p>Digital biquad filters.</p> +<p> + +</p> + + +<h2><a href="#Class_biquad_lowpass">Class biquad.lowpass </a></h2> +<table class="function_list"> + <tr> + <td class="name" nowrap><a href="#biquad.lowpass.init">biquad.lowpass.init(input)</a></td> + <td class="summary">Create a lowpass filter.</td> + </tr> + <tr> + <td class="name" nowrap><a href="#lowpass:cutoff">lowpass:cutoff(cut)</a></td> + <td class="summary">Set filter cutoff frequency.</td> + </tr> + <tr> + <td class="name" nowrap><a href="#lowpass:resonance">lowpass:resonance(res)</a></td> + <td class="summary">Set filter resonance.</td> + </tr> +</table> + +<br/> +<br/> + + + <h2 class="section-header has-description"><a name="Class_biquad_lowpass"></a>Class biquad.lowpass </h2> + + <div class="section-description"> + Lowpass filter. + </div> + <h3>Usage:</h3> + <pre class="example"><span class="keyword">local</span> mbiquad = <span class="global">require</span> <span class="string">'melisma.biquad'</span> +<span class="keyword">local</span> input = ... +<span class="keyword">local</span> lowpass = mbiquad.lowpass.<span class="function-name">init</span>(node, <span class="number">2000</span>, <span class="number">0.6</span>) +lowpass:<span class="function-name">resonance</span>(<span class="number">1000</span>) +lowpass:<span class="function-name">cutoff</span>(<span class="number">0.25</span>)</pre> + <dl class="function"> + <dt> + <a name = "biquad.lowpass.init"></a> + <strong>biquad.lowpass.init(input)</strong> + </dt> + <dd> + Create a lowpass filter. + + + <h3>Parameters:</h3> + <ul> + <li><span class="parameter">input</span> + <span class="types"><span class="type">channel</span></span> + Input signal. + </li> + </ul> + + <h3>Returns:</h3> + <ol> + + <span class="types"><a class="type" href="../modules/biquad.html#biquad.lowpass">biquad.lowpass</a></span> + The newly created lowpass filter. + </ol> + + + + +</dd> + <dt> + <a name = "lowpass:cutoff"></a> + <strong>lowpass:cutoff(cut)</strong> + </dt> + <dd> + Set filter cutoff frequency. + + + <h3>Parameters:</h3> + <ul> + <li><span class="parameter">cut</span> + <span class="types"><span class="type">number</span></span> + Cutoff frequency. + </li> + </ul> + + + + + +</dd> + <dt> + <a name = "lowpass:resonance"></a> + <strong>lowpass:resonance(res)</strong> + </dt> + <dd> + Set filter resonance. + + + <h3>Parameters:</h3> + <ul> + <li><span class="parameter">res</span> + <span class="types"><span class="type">number</span></span> + Resonance. + </li> + </ul> + + + + + +</dd> +</dl> + + +</div> <!-- id="content" --> +</div> <!-- id="main" --> +<div id="about"> +<i>generated by <a href="http://github.com/lunarmodules/LDoc">LDoc 1.5.0</a></i> +<i style="float:right;">Last updated 1980-01-01 00:00:00 </i> +</div> <!-- id="about" --> +</div> <!-- id="container" --> +</body> +</html> |
