Help/Streams-Patterns-Events/Patterns/Pswitch1.html

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
   2 <html>
   3 <head>
   4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
   5 <meta http-equiv="Content-Style-Type" content="text/css">
   6 <title></title>
   7 <meta name="Generator" content="Cocoa HTML Writer">
   8 <meta name="CocoaVersion" content="1038.25">
   9 <style type="text/css">
  10 p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica}
  11 p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Helvetica; min-height: 14.0px}
  12 p.p3 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Monaco}
  13 p.p4 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px Monaco; min-height: 16.0px}
  14 p.p5 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Monaco; color: #2c7014}
  15 p.p6 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Monaco; min-height: 12.0px}
  16 p.p7 {margin: 0.0px 0.0px 0.0px 0.0px; font: 9.0px Monaco; color: #001bb9}
  17 span.s1 {font: 18.0px Helvetica}
  18 span.s2 {color: #001bb9}
  19 span.s3 {color: #000000}
  20 span.s4 {color: #2c7014}
  21 span.Apple-tab-span {white-space:pre}
  22 </style>
  23 </head>
  24 <body>
  25 <p class="p1"><span class="s1"><b>Pswitch1</b></span> <span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><b>embed values in a list according to a pattern of indices</b></p>
  26 <p class="p2"><br></p>
  27 <p class="p2"><br></p>
  28 <p class="p1"><b>Pswitch1(list, which)</b></p>
  29 <p class="p2"><br></p>
  30 <p class="p1">Pswitch1 chooses elements from the <b>list</b> by a stream of indices (<b>which</b>) and embeds them in the stream.</p>
  31 <p class="p1">If the element is itself a pattern, it embeds only one of its values for each index, and thus switches between all patterns in the list.</p>
  32 <p class="p2"><br></p>
  33 <p class="p1">see also: <a href="Pswitch.html"><span class="s2">Pswitch</span></a></p>
  34 <p class="p2"><br></p>
  35 <p class="p3">(</p>
  36 <p class="p3"><span class="s2">var</span> a, b;</p>
  37 <p class="p3">a = <span class="s2">Pseq</span>([1, 2, 3], inf);</p>
  38 <p class="p3">b = <span class="s2">Pseq</span>([65, 76], inf);</p>
  39 <p class="p3">c = <span class="s2">Pswitch1</span>([a, b, 800], <span class="s2">Pseq</span>([2, 2, 0, 1], <span class="s2">inf</span>));</p>
  40 <p class="p3">x = c.asStream;</p>
  41 <p class="p3">24.do({ x.next.postln; });</p>
  42 <p class="p3">)</p>
  43 <p class="p2"><br></p>
  44 <p class="p4"><br></p>
  45 <p class="p1">Pswitch used as a sequence of pitches:</p>
  46 <p class="p4"><br></p>
  47 <p class="p4"><br></p>
  48 <p class="p3">(</p>
  49 <p class="p5"><span class="s2">SynthDef</span><span class="s3">(</span>\help_sinegrain<span class="s3">,<span class="Apple-converted-space"> </span></span></p>
  50 <p class="p3"><span class="Apple-tab-span">     </span>{ <span class="s2">arg</span> out=0, freq=440, sustain=0.05;</p>
  51 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s2">var</span> env;</p>
  52 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>env = <span class="s2">EnvGen</span>.kr(<span class="s2">Env</span>.perc(0.01, sustain, 0.2), doneAction:2);</p>
  53 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s2">Out</span>.ar(out, <span class="s2">SinOsc</span>.ar(freq, 0, env))</p>
  54 <p class="p3"><span class="Apple-tab-span">     </span>}).add;</p>
  55 <p class="p3">)</p>
  56 <p class="p6"><br></p>
  57 <p class="p6"><br></p>
  58 <p class="p6"><br></p>
  59 <p class="p3">(</p>
  60 <p class="p3">a = <span class="s2">Pseq</span>([73, 71, 69], <span class="s2">inf</span>);</p>
  61 <p class="p3">b = <span class="s2">Pseq</span>([0, 0, 0, 4, 0]+64, <span class="s2">inf</span>);</p>
  62 <p class="p3">c = <span class="s2">Pswitch1</span>([a, b, 75], <span class="s2">Pseq</span>([2, 2, 0, 1], <span class="s2">inf</span>));</p>
  63 <p class="p3">x = c.asStream;</p>
  64 <p class="p7">Routine<span class="s3">({</span></p>
  65 <p class="p3"><span class="Apple-tab-span">     </span>loop({</p>
  66 <p class="p3"><span class="Apple-tab-span">     </span><span class="s2">Synth</span>(<span class="s4">\help_sinegrain</span>, [<span class="s4">\freq</span>, x.next.midicps]);</p>
  67 <p class="p3"><span class="Apple-tab-span">     </span>0.18.wait;</p>
  68 <p class="p3"><span class="Apple-tab-span">     </span>})</p>
  69 <p class="p3">}).play;</p>
  70 <p class="p3">)</p>
  71 <p class="p6"><br></p>
  72 <p class="p4"><br></p>
  73 </body>
  74 </html>