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

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  25 <p class="p1"><span class="s1"><b>Ppatmod</b></span><span class="Apple-tab-span">       </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><b>modify a given pattern before passing it into the stream</b></p>
  26 <p class="p2"><br></p>
  27 <p class="p1"><b>superclass: Pattern</b></p>
  28 <p class="p2"><br></p>
  29 <p class="p2"><br></p>
  30 <p class="p1"><b>Ppatmod(pattern, func, repeats)</b></p>
  31 <p class="p2"><br></p>
  32 <p class="p1"><b>func - </b>A function that modifies the enclosed pattern and embeds it in the stream.</p>
  33 <p class="p2"><br></p>
  34 <p class="p1">see also <a href="Plazy.html"><span class="s2">Plazy</span></a></p>
  35 <p class="p2"><span class="Apple-converted-space"> </span></p>
  36 <p class="p2"><span class="Apple-converted-space"> </span></p>
  37 <p class="p3">(</p>
  38 <p class="p4"><span class="s3">a = </span>Ppatmod<span class="s3">(</span></p>
  39 <p class="p3"><span class="Apple-tab-span">     </span><span class="s4">Pseq</span>([0, 0, 0, 0],1),</p>
  40 <p class="p3"><span class="Apple-tab-span">     </span>{ <span class="s4">arg</span> pat, i;</p>
  41 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> list;</p>
  42 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>list = pat.list;</p>
  43 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>pat.list = list.put(list.size.rand, 2);</p>
  44 <p class="p3"><span class="Apple-tab-span">     </span>}, <span class="s4">inf</span>);</p>
  45 <p class="p5"><br></p>
  46 <p class="p3">x = a.asStream;</p>
  47 <p class="p3">30.do({ x.next.postln });</p>
  48 <p class="p3">)</p>
  49 <p class="p2"><br></p>
  50 <p class="p2"><br></p>
  51 <p class="p1">Ppatmod used to modify a pattern that produces a sequence of pitches:</p>
  52 <p class="p2"><span class="Apple-converted-space"> </span></p>
  53 <p class="p3">(</p>
  54 <p class="p6"><span class="s4">SynthDef</span><span class="s3">(</span>\help_sinegrain<span class="s3">,<span class="Apple-converted-space"> </span></span></p>
  55 <p class="p3"><span class="Apple-tab-span">     </span>{ <span class="s4">arg</span> out=0, freq=440, sustain=0.05;</p>
  56 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">var</span> env;</p>
  57 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>env = <span class="s4">EnvGen</span>.kr(<span class="s4">Env</span>.perc(0.01, sustain, 0.2), doneAction:2);</p>
  58 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">Out</span>.ar(out, <span class="s4">SinOsc</span>.ar(freq, 0, env))</p>
  59 <p class="p3"><span class="Apple-tab-span">     </span>}).add;</p>
  60 <p class="p3">)</p>
  61 <p class="p5"><br></p>
  62 <p class="p5"><br></p>
  63 <p class="p3">(</p>
  64 <p class="p3">a = <span class="s4">Pn</span>(</p>
  65 <p class="p4"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>Ppatmod<span class="s3">(</span></p>
  66 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s4">Pseq</span>([0, 0, 0, 0],1),</p>
  67 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>{ <span class="s4">arg</span> pat, i;</p>
  68 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s4">var</span> list;</p>
  69 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>list = pat.list;</p>
  70 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>pat.list = list.put(list.size.rand, 2);</p>
  71 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>}, 15),</p>
  72 <p class="p3"><span class="Apple-tab-span">     </span><span class="s4">inf</span>).asStream;</p>
  73 <p class="p5"><br></p>
  74 <p class="p4">Routine<span class="s3">({</span></p>
  75 <p class="p3"><span class="Apple-tab-span">     </span>loop({</p>
  76 <p class="p3"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s4">Synth</span>(<span class="s5">\help_sinegrain</span>, [<span class="s5">\freq</span>, (a.next*5+77).midicps]);</p>
  77 <p class="p3"><span class="Apple-tab-span">     </span>0.13.wait;</p>
  78 <p class="p3"><span class="Apple-tab-span">     </span>})</p>
  79 <p class="p3">}).play;</p>
  80 <p class="p3">)</p>
  81 <p class="p5"><br></p>
  82 <p class="p5"><br></p>
  83 <p class="p5"><br></p>
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