<!doctype html><html lang='en'><head><title>Klang | SuperCollider 3.12.2 Help</title>
<link rel='stylesheet' href='./../scdoc.css' type='text/css' />
<link rel='stylesheet' href='./../codemirror.css' type='text/css' />
<link rel='stylesheet' href='./../editor.css' type='text/css' />
<link rel='stylesheet' href='./../frontend.css' type='text/css' />
<link rel='stylesheet' href='./../custom.css' type='text/css' />
<meta name='viewport' content='width=device-width, initial-scale=1'>
<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />
<script src='./../lib/jquery.min.js'></script>
<script src='./../lib/codemirror-5.39.2.min.js' type='text/javascript'></script>
<script src='./../lib/codemirror-addon-simple-5.39.2.min.js' type='text/javascript'></script>
<script>
var helpRoot = './..';
var scdoc_title = 'Klang';
var scdoc_sc_version = '3.12.2';
</script>
<script src='./../scdoc.js' type='text/javascript'></script>
<script src='./../docmap.js' type='text/javascript'></script>
<script src='qrc:///qtwebchannel/qwebchannel.js' type='text/javascript'></script>
</head>
<body onload='fixTOC()'>
<div id='toc'>
<div id='toctitle'>Klang:</div>
<span class='toc_search'>Filter: <input id='toc_search'></span><ul class='toc'><li class='toc1'><a href='#description'>Description</a></li>
<ul class='toc'></ul><li class='toc1'><a href='#classmethods'>Class methods</a></li>
<ul class='toc'><li class='toc3'><a href='#*ar'>ar</a> </li>
<li class='toc2'><a href='#Inherited%20class%20methods'>Inherited class methods</a></li>
</ul><li class='toc1'><a href='#instancemethods'>Instance methods</a></li>
<ul class='toc'><li class='toc2'><a href='#Inherited%20instance%20methods'>Inherited instance methods</a></li>
</ul><li class='toc1'><a href='#examples'>Examples</a></li>
<ul class='toc'></ul></ul></div><div id='menubar'></div>
<div class='contents'>
<div class='header'>
<div id='label'>
<span id='folder'>Classes</span>
| <span id='categories'><a href='./../Browse.html#UGens'>UGens</a> > <a href='./../Browse.html#UGens>Generators'>Generators</a> > <a href='./../Browse.html#UGens>Generators>Deterministic'>Deterministic</a></span>
</div><h1>Klang<span id='superclasses'> : <a href="../Classes/UGen.html">UGen</a> : <a href="../Classes/AbstractFunction.html">AbstractFunction</a> : <a href="../Classes/Object.html">Object</a></span>
</h1>
<div id='summary'>Sine oscillator bank</div>
</div>
<div class='subheader'>
<div id='filename'>Source: <a href='file:///Applications/SuperCollider.app/Contents/Resources/SCClassLibrary/Common/Audio/FSinOsc.sc' title='/Applications/SuperCollider.app/Contents/Resources/SCClassLibrary/Common/Audio/FSinOsc.sc'>FSinOsc.sc</a></div><div id='related'>See also: <a href="./../Classes/Klank.html">Klank</a>, <a href="./../Classes/DynKlang.html">DynKlang</a></div>
</div>
<h2><a class='anchor' name='description'>Description</a></h2>
<p>Klang is a bank of fixed frequency sine oscillators. Klang is more efficient than creating individual oscillators but offers less flexibility.<h2><a class='anchor' name='classmethods'>Class Methods</a></h2>
<h3 class='method-code'><span class='method-prefix'>Klang.</span><a class='method-name' name='*ar' href='./../Overviews/Methods.html#ar'>ar</a>(<span class='argstr'>specificationsArrayRef</span>, <span class='argstr'>freqscale: 1.0</span>, <span class='argstr'>freqoffset: 0.0</span>)</h3>
<div class='method'>
<p><h4>Arguments:</h4>
<table class='arguments'>
<tr><td class='argumentname'>specificationsArrayRef<td class='argumentdesc'>
<p>A <a href="./../Classes/Ref.html">Ref</a> to an <a href="./../Classes/Array.html">Array</a> of three Arrays:<dl>
<dt>frequencies:<dd>An Array of oscillator frequencies.<dt>amplitudes:<dd>an Array of oscillator amplitudes, or nil. If nil, then amplitudes default to 1.0.<dt>phases:<dd>an Array of initial phases, or nil. If nil, then phases default to 0.0.</dl>
<tr><td class='argumentname'>freqscale<td class='argumentdesc'>
<p>A scale factor multiplied by all frequencies at initialization time.<tr><td class='argumentname'>freqoffset<td class='argumentdesc'>
<p>An offset added to all frequencies at initialization time.</table><h4>Discussion:</h4>
<p>The parameters in <code>specificationsArrayRef</code> can't be changed after it has been started. For a modulatable but less efficient version, see <a href="./../Classes/DynKlang.html">DynKlang</a>.</div><h3><a class='anchor' name='Inherited%20class%20methods'>Inherited class methods</a></h3>
<div id='inheritedclassmets'></div><h2><a class='anchor' name='instancemethods'>Instance Methods</a></h2>
<h3><a class='anchor' name='Inherited%20instance%20methods'>Inherited instance methods</a></h3>
<div id='inheritedinstmets'></div><h2><a class='anchor' name='examples'>Examples</a></h2>
<textarea class='editor'>play({ Klang.ar(`[ [800, 1000, 1200], [0.3, 0.3, 0.3], [pi, pi, pi]], 1, 0) * 0.4});
play({ Klang.ar(`[ [800, 1000, 1200], nil, nil], 1, 0) * 0.25});
play({ Klang.ar(`[ Array.rand(12, 600.0, 1000.0), nil, nil ], 1, 0) * 0.05 });
(
{
loop({
play({
Pan2.ar(Klang.ar(`[ Array.rand(12, 200.0, 2000.0), nil, nil ], 1, 0), 1.0.rand)
* EnvGen.kr(Env.sine(4), 1, 0.02, doneAction: Done.freeSelf);
});
2.wait;
})
}.fork;
)
// Multichannel expansion:
(
{
loop({
play({
var nPartials = 12, nChans = 5, n = nPartials * nChans;
Splay.ar(Klang.ar(`[ { { rrand(200.0, 2000.0) } ! nPartials } ! nChans, nil, nil ], 1, 0))
* EnvGen.kr(Env.sine(4), 1, 0.02, doneAction: Done.freeSelf);
});
2.wait;
})
}.fork;
)</textarea>
<div class='doclink'>helpfile source: <a href='file:///Applications/SuperCollider.app/Contents/Resources/HelpSource/Classes/Klang.schelp'>/Applications/SuperCollider.app/Contents/Resources/HelpSource/Classes/Klang.schelp</a><br>link::Classes/Klang::<br></div></div><script src='./../editor.js' type='text/javascript'></script>
</body></html>