<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>flanger</title>
<link rel="stylesheet" type="text/css" href="csound.css" />
<link rel="stylesheet" type="text/css" href="syntax-highlighting.css" />
<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" />
<link rel="home" href="index.html" title="The Canonical Csound Reference Manual" />
<link rel="up" href="OpcodesTop.html" title="Orchestra Opcodes and Operators" />
<link rel="prev" href="fiopen.html" title="fiopen" />
<link rel="next" href="flashtxt.html" title="flashtxt" />
</head>
<body>
<div class="navheader">
<table width="100%" summary="Navigation header">
<tr>
<th colspan="3" align="center">flanger</th>
</tr>
<tr>
<td width="20%" align="left"><a accesskey="p" href="fiopen.html">Prev</a> </td>
<th width="60%" align="center">Orchestra Opcodes and Operators</th>
<td width="20%" align="right"> <a accesskey="n" href="flashtxt.html">Next</a></td>
</tr>
</table>
<hr />
</div>
<div class="refentry">
<a id="flanger"></a>
<div class="titlepage"></div>
<a id="IndexFlanger" class="indexterm"></a>
<div class="refnamediv">
<h2>
<span class="refentrytitle">flanger</span>
</h2>
<p>flanger —
A user controlled flanger.
</p>
</div>
<div class="refsect1">
<a id="idm281472937089656"></a>
<h2>Description</h2>
<p>
A user controlled flanger.
</p>
</div>
<div class="refsect1">
<a id="idm281472937046200"></a>
<h2>Syntax</h2>
<pre class="synopsis">ares <span class="command"><strong>flanger</strong></span> asig, adel, kfeedback [, imaxd]</pre>
</div>
<div class="refsect1">
<a id="idm281472937044072"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>imaxd</em></span>(optional) -- maximum delay in seconds (needed for inital memory allocation)
</p>
</div>
<div class="refsect1">
<a id="idm281472937042472"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>asig</em></span> -- input signal
</p>
<p>
<span class="emphasis"><em>adel</em></span> -- delay in seconds
</p>
<p>
<span class="emphasis"><em>kfeedback</em></span> -- feedback amount (in normal tasks this should not exceed 1, even if bigger values are allowed)
</p>
<p>
This unit is useful for generating choruses and flangers. The delay must be varied at a-rate, for example by connecting <span class="emphasis"><em>adel</em></span> to an oscillator output. The feedback can vary at k-rate. This opcode is implemented to allow <span class="emphasis"><em>kr</em></span> different than <span class="emphasis"><em>sr</em></span> (else delay could not be lower than <span class="emphasis"><em>ksmps</em></span>) enhancing realtime performance. This unit is very similar to <a class="link" href="wguide1.html" title="wguide1"><em class="citetitle">wguide1</em></a>, the only difference is <span class="emphasis"><em>flanger</em></span> does not have the lowpass filter or the requirement that the delay be varied at a-rate.
</p>
</div>
<div class="refsect1">
<a id="idm281472937035256"></a>
<h2>Examples</h2>
<p>
Here is an example of the flanger opcode. It uses the file <a class="ulink" href="examples/flanger.csd" target="_top"><em class="citetitle">flanger.csd</em></a>.
</p>
<div class="example">
<a id="idm281472937033400"></a>
<p class="title">
<strong>Example 282. Example of the flanger opcode.</strong>
</p>
<div class="example-contents">
<p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
<div class="refsect1">
<a id="idm281472769371336"></a>
<pre class="programlisting">
<span class="nt"><CsoundSynthesizer></span>
<span class="nt"><CsOptions></span>
<span class="c1">; Select audio/midi flags here according to platform</span>
-odac <span class="c1">;;;realtime audio out</span>
<span class="c1">;-iadc ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="c1">; For Non-realtime ouput leave only the line below:</span>
<span class="c1">;-o flanger.wav -W ;;; for file output any platform</span>
<span class="nt"></CsOptions></span>
<span class="nt"><CsInstruments></span>
<span class="vg">sr</span> <span class="o">=</span> <span class="mi">44100</span>
<span class="vg">ksmps</span> <span class="o">=</span> <span class="mi">32</span>
<span class="vg">nchnls</span> <span class="o">=</span> <span class="mi">2</span>
<span class="vg">0dbfs</span> <span class="o">=</span> <span class="mi">1</span>
<span class="kd">instr</span> <span class="nf">1</span>
k<span class="n">feedback</span> <span class="o">=</span> <span class="nb">p4</span>
a<span class="n">snd</span> <span class="nb">vco2</span> <span class="mf">.2</span><span class="p">,</span> <span class="mi">50</span>
a<span class="n">del</span> <span class="nb">linseg</span> <span class="mi">0</span><span class="p">,</span> <span class="nb">p3</span><span class="o">*</span><span class="mf">.5</span><span class="p">,</span> <span class="mf">0.02</span><span class="p">,</span> <span class="nb">p3</span><span class="o">*</span><span class="mf">.5</span><span class="p">,</span> <span class="mi">0</span> <span class="c1">;max delay time =20ms </span>
a<span class="n">flg</span> <span class="nb">flanger</span> a<span class="n">snd</span><span class="p">,</span> a<span class="n">del</span><span class="p">,</span> k<span class="n">feedback</span>
a<span class="n">sig</span> <span class="nb">clip</span> a<span class="n">flg</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span>
<span class="nb">outs</span> a<span class="n">sig</span><span class="o">+</span>a<span class="n">snd</span><span class="p">,</span> a<span class="n">sig</span><span class="o">+</span>a<span class="n">snd</span> <span class="c1">;mix flanger with original</span>
<span class="kd">endin</span>
<span class="nt"></CsInstruments></span>
<span class="nt"><CsScore></span>
<span class="nb">i</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">10</span> <span class="mf">.2</span>
<span class="nb">i</span> <span class="mi">1</span> <span class="mi">11</span> <span class="mi">10</span> <span class="mf">.8</span> <span class="c1">;lot of feedback</span>
<span class="nb">e</span>
<span class="nt"></CsScore></span>
<span class="nt"></CsoundSynthesizer></span>
</pre>
</div>
</div>
</div>
<p><br class="example-break" />
</p>
</div>
<div class="refsect1">
<a id="idm281472937029112"></a>
<h2>See Also</h2>
<p> More information on flanging on Wikipedia: <a class="ulink" href="http://en.wikipedia.org/wiki/Flanger" target="_top"><em class="citetitle">http://en.wikipedia.org/wiki/Flanger</em></a></p>
</div>
<div class="refsect1">
<a id="idm281472937027176"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Gabriel Maldonado</td>
</tr>
<tr>
<td>Italy</td>
</tr>
</table>
<p>
</p>
<p>New in Csound version 3.49</p>
</div>
</div>
<div class="navfooter">
<hr />
<table width="100%" summary="Navigation footer">
<tr>
<td width="40%" align="left"><a accesskey="p" href="fiopen.html">Prev</a> </td>
<td width="20%" align="center">
<a accesskey="u" href="OpcodesTop.html">Up</a>
</td>
<td width="40%" align="right"> <a accesskey="n" href="flashtxt.html">Next</a></td>
</tr>
<tr>
<td width="40%" align="left" valign="top">fiopen </td>
<td width="20%" align="center">
<a accesskey="h" href="index.html">Home</a>
</td>
<td width="40%" align="right" valign="top"> flashtxt</td>
</tr>
</table>
</div>
</body>
</html>
distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-release
>
by-pkgid
>
5fcfcb7517038d1f44ab4e478e6e61fa
>
files
>
1901
