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added XCut helpfile

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rob 2009-01-09 23:11:29 +00:00
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta http-equiv="Content-Style-Type" content="text/css">
<title></title>
<meta name="Generator" content="Cocoa HTML Writer">
<meta name="CocoaVersion" content="949.43">
<style type="text/css">
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p.p13 {margin: 0.0px 0.0px 0.0px 57.0px; text-indent: -57.0px; font: 9.0px Monaco; color: #000000}
span.s1 {text-decoration: underline}
span.s2 {color: #000000}
span.s3 {color: #0000bf}
</style>
</head>
<body>
<p class="p1"><b>XCut</b></p>
<p class="p2"><br></p>
<p class="p3">Select one from an array of inputs. When index is changed, fades between the old and new signals using switch-and-ramp technique, minimizing audible artefacts/clicks.</p>
<p class="p2"><br></p>
<p class="p4"><b><span class="s1">Class methods</span></b></p>
<p class="p2"><br></p>
<p class="p5"><b>*ar(inArray, which, envLength, mul, add)</b></p>
<p class="p6"><br></p>
<p class="p3"><b>inArray - </b>array of inputs.</p>
<p class="p2"><br></p>
<p class="p3"><b>which</b> -<span class="Apple-converted-space">  </span>index of the signal to select.</p>
<p class="p2"><br></p>
<p class="p3"><b>envLength</b> -<span class="Apple-converted-space">  </span>length of the x-fading window in samples, (default 2000).</p>
<p class="p2"><br></p>
<p class="p2"><br></p>
<p class="p3"><i>Examples</i></p>
<p class="p7"><br></p>
<p class="p8"><br></p>
<p class="p9">// execute this line first</p>
<p class="p10"><span class="s2">b=</span><span class="s3">Buffer</span><span class="s2">.read(s,</span>"sounds/a11wlk01.wav"<span class="s2">);</span></p>
<p class="p11"><br></p>
<p class="p12">// now, execute this block and click the mouse button to switch between two signals</p>
<p class="p13">(</p>
<p class="p13">s.doWhenBooted {</p>
<p class="p13"><span class="Apple-converted-space">  </span>{</p>
<p class="p13"><span class="Apple-converted-space">    </span><span class="s3">var</span> b1,b2;</p>
<p class="p13"><span class="Apple-converted-space">    </span>b1 = <span class="s3">PlayBuf</span>.ar(numChannels:1,bufnum:b,trigger:<span class="s3">LFPulse</span>.ar((1/b.duration)*3));</p>
<p class="p13"><span class="Apple-converted-space">    </span>b2 = <span class="s3">PlayBuf</span>.ar(numChannels:1,bufnum:b,startPos:b.numFrames/2,trigger:<span class="s3">LFPulse</span>.ar((1/b.duration)*2));</p>
<p class="p11"><span class="Apple-converted-space">    </span></p>
<p class="p13"><span class="Apple-converted-space">    </span><span class="s3">XCut</span>.ar([b1, b2], <span class="s3">MouseButton</span>.kr(0,1,0))</p>
<p class="p13"><span class="Apple-converted-space">  </span>}.play</p>
<p class="p13">}</p>
<p class="p13">)</p>
</body>
</html>