<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <link rel="stylesheet" href="style.css" type="text/css"> <meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type"> <link rel="Start" href="index.html"> <link rel="previous" href="Audio.Effect.compress-c.html"> <link rel="Up" href="Audio.Effect.html"> <link title="Index of types" rel=Appendix href="index_types.html"> <link title="Index of exceptions" rel=Appendix href="index_exceptions.html"> <link title="Index of values" rel=Appendix href="index_values.html"> <link title="Index of class methods" rel=Appendix href="index_methods.html"> <link title="Index of classes" rel=Appendix href="index_classes.html"> <link title="Index of class types" rel=Appendix href="index_class_types.html"> <link title="Index of modules" rel=Appendix href="index_modules.html"> <link title="Index of module types" rel=Appendix href="index_module_types.html"> <link title="Audio" rel="Chapter" href="Audio.html"> <link title="Image" rel="Chapter" href="Image.html"> <link title="MIDI" rel="Chapter" href="MIDI.html"> <link title="Ringbuffer" rel="Chapter" href="Ringbuffer.html"> <link title="Synth" rel="Chapter" href="Synth.html"> <link title="Video" rel="Chapter" href="Video.html"><title>Audio.Effect.biquad_filter</title> </head> <body> <div class="navbar"><a class="pre" href="Audio.Effect.compress-c.html" title="Audio.Effect.compress">Previous</a> <a class="up" href="Audio.Effect.html" title="Audio.Effect">Up</a> </div> <h1>Class <a href="type_Audio.Effect.biquad_filter.html">Audio.Effect.biquad_filter</a></h1> <pre><span name="TYPEbiquad_filter"><span class="keyword">class</span> biquad_filter</span> : <code class="type">int -> int -> [ `All_pass<br> | `Band_pass<br> | `High_pass<br> | `High_shelf<br> | `Low_pass<br> | `Low_shelf<br> | `Notch<br> | `Peaking ] -> ?gain:float -> float -> float -> </code><code class="type"><a href="Audio.Effect.t-c.html">t</a></code></pre><div class="info class top"> A biquadratic filter. <code class="code">gain</code> in dB is only used by peaking, low and high shelves.<br> </div> <hr width="100%"> </body></html>