69 lines
5.8 KiB
HTML
69 lines
5.8 KiB
HTML
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<!doctype html><html lang='en'><head><title>Blip | SuperCollider 3.12.2 Help</title>
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<link rel='stylesheet' href='./../scdoc.css' type='text/css' />
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<link rel='stylesheet' href='./../codemirror.css' type='text/css' />
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<link rel='stylesheet' href='./../editor.css' type='text/css' />
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<link rel='stylesheet' href='./../frontend.css' type='text/css' />
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<link rel='stylesheet' href='./../custom.css' type='text/css' />
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<meta name='viewport' content='width=device-width, initial-scale=1'>
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<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />
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<script src='./../lib/jquery.min.js'></script>
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<script src='./../lib/codemirror-5.39.2.min.js' type='text/javascript'></script>
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<script src='./../lib/codemirror-addon-simple-5.39.2.min.js' type='text/javascript'></script>
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<script>
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var helpRoot = './..';
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var scdoc_title = 'Blip';
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var scdoc_sc_version = '3.12.2';
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</script>
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<script src='./../scdoc.js' type='text/javascript'></script>
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<script src='./../docmap.js' type='text/javascript'></script>
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<script src='qrc:///qtwebchannel/qwebchannel.js' type='text/javascript'></script>
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</head>
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<body onload='fixTOC()'>
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<div id='toc'>
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<div id='toctitle'>Blip:</div>
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<span class='toc_search'>Filter: <input id='toc_search'></span><ul class='toc'><li class='toc1'><a href='#description'>Description</a></li>
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<ul class='toc'></ul><li class='toc1'><a href='#classmethods'>Class methods</a></li>
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<ul class='toc'><li class='toc3'><a href='#*ar'>ar</a> </li>
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<li class='toc2'><a href='#Inherited%20class%20methods'>Inherited class methods</a></li>
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<li class='toc2'><a href='#Undocumented%20class%20methods'>Undocumented class methods</a></li>
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<ul class='toc'><li class='toc3'><a href='#*kr'>kr</a> </li>
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</ul></ul><li class='toc1'><a href='#instancemethods'>Instance methods</a></li>
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<ul class='toc'><li class='toc2'><a href='#Inherited%20instance%20methods'>Inherited instance methods</a></li>
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</ul><li class='toc1'><a href='#examples'>Examples</a></li>
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<ul class='toc'></ul></ul></div><div id='menubar'></div>
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<div class='contents'>
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<div class='header'>
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<div id='label'>
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<span id='folder'>Classes</span>
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| <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>
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</div><h1>Blip<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>
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</h1>
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<div id='summary'>Band limited impulse oscillator.</div>
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</div>
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<div class='subheader'>
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<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/Impulse.html">Impulse</a></div>
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</div>
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<h2><a class='anchor' name='description'>Description</a></h2>
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<p>Band Limited ImPulse generator. All harmonics have equal amplitude. This is the equivalent of 'buzz' in <em>MusicN</em> languages.
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<p><em>Synth-O-Matic</em> (1990) had an impulse generator called blip, hence that name here rather than 'buzz'.
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<p>It is improved from other implementations in that it will crossfade in a control period when the number of harmonics changes, so that there are no audible pops. It also eliminates the divide in the formula by using a 1/sin table (with special precautions taken for 1/0). The lookup tables are linearly interpolated for better quality.<div class='warning'><span class='warninglabel'>WARNING:</span> This waveform in its raw form could be damaging to your ears at high amplitudes or for long periods.</div><h2><a class='anchor' name='classmethods'>Class Methods</a></h2>
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<h3 class='method-code'><span class='method-prefix'>Blip.</span><a class='method-name' name='*ar' href='./../Overviews/Methods.html#ar'>ar</a>(<span class='argstr'>freq: 440.0</span>, <span class='argstr'>numharm: 200.0</span>, <span class='argstr'>mul: 1.0</span>, <span class='argstr'>add: 0.0</span>)</h3>
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<div class='method'>
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<p><h4>Arguments:</h4>
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<table class='arguments'>
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<tr><td class='argumentname'>freq<td class='argumentdesc'>
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<p>Frequency in Hertz.<tr><td class='argumentname'>numharm<td class='argumentdesc'>
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<p>Number of harmonics. This may be lowered internally if it would cause aliasing.<tr><td class='argumentname'>mul<td class='argumentdesc'><tr><td class='argumentname'>add<td class='argumentdesc'></table></div><h3><a class='anchor' name='Inherited%20class%20methods'>Inherited class methods</a></h3>
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<div id='inheritedclassmets'></div><h3><a class='anchor' name='Undocumented%20class%20methods'>Undocumented class methods</a></h3>
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<h3 class='method-code'><span class='method-prefix'>Blip.</span><a class='method-name' name='*kr' href='./../Overviews/Methods.html#kr'>kr</a>(<span class='argstr'>freq: 440.0</span>, <span class='argstr'>numharm: 200.0</span>, <span class='argstr'>mul: 1.0</span>, <span class='argstr'>add: 0.0</span>)</h3>
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<h2><a class='anchor' name='instancemethods'>Instance Methods</a></h2>
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<h3><a class='anchor' name='Inherited%20instance%20methods'>Inherited instance methods</a></h3>
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<div id='inheritedinstmets'></div><h2><a class='anchor' name='examples'>Examples</a></h2>
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<textarea class='editor'>// modulate frequency
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{ Blip.ar(XLine.kr(20000,200,6),100,0.2) }.play;
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// modulate numharmonics
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{ Blip.ar(200,Line.kr(1,100,20),0.2) }.play;</textarea>
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<div class='doclink'>helpfile source: <a href='file:///Applications/SuperCollider.app/Contents/Resources/HelpSource/Classes/Blip.schelp'>/Applications/SuperCollider.app/Contents/Resources/HelpSource/Classes/Blip.schelp</a><br>link::Classes/Blip::<br></div></div><script src='./../editor.js' type='text/javascript'></script>
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</body></html>
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