Help/UGens/Triggers/TWindex.html

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  25 <p class="p1"><span class="s1"><b>TWindex<span class="Apple-tab-span">  </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></b></span><b>triggered windex</b></p>
  26 <p class="p2"><b></b><br></p>
  27 <p class="p1"><b><span class="Apple-tab-span">  </span>*kr(trig,array,normalize)</b></p>
  28 <p class="p2"><b><span class="Apple-tab-span">  </span></b></p>
  29 <p class="p1">When triggered, returns a random index value based on array as a list of probabilities.</p>
  30 <p class="p1">by default the list of probabilities should sum to 1.0, when the normalize flag is set to 1,</p>
  31 <p class="p1">the values get normalized by the ugen (less efficient)</p>
  32 <p class="p2"><b></b><br></p>
  33 <p class="p3"><br></p>
  34 <p class="p4">//assuming normalized values</p>
  35 <p class="p5">(</p>
  36 <p class="p6"><br></p>
  37 <p class="p5">a = <span class="s2">SynthDef</span>(<span class="s3">"help-TWindex"</span>,{ <span class="s2">arg</span> w1=0.0, w2=0.5, w3=0.5;</p>
  38 <p class="p6"><br></p>
  39 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">var</span> trig, index;</p>
  40 <p class="p5"><span class="Apple-tab-span">     </span>trig = <span class="s2">Impulse</span>.kr(6);</p>
  41 <p class="p5"><span class="Apple-tab-span">     </span>index = <span class="s2">TWindex</span>.kr(trig, [w1, w2, w3]);</p>
  42 <p class="p6"><span class="Apple-tab-span">     </span></p>
  43 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">Out</span>.ar(0,</p>
  44 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s2">SinOsc</span>.ar(</p>
  45 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s2">Select</span>.kr(index,[400, 500, 600]),</p>
  46 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>0, 0.2</p>
  47 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>)</p>
  48 <p class="p5"><span class="Apple-tab-span">     </span>)</p>
  49 <p class="p5">}).play;</p>
  50 <p class="p6"><br></p>
  51 <p class="p5">)</p>
  52 <p class="p6"><br></p>
  53 <p class="p5">a.setn(0, [0,0,1].normalizeSum);</p>
  54 <p class="p5">a.setn(0, [1,1,1].normalizeSum);</p>
  55 <p class="p5">a.setn(0, [1,0,1].normalizeSum);</p>
  56 <p class="p6"><br></p>
  57 <p class="p6"><br></p>
  58 <p class="p4">//modulating probability values</p>
  59 <p class="p5">(</p>
  60 <p class="p6"><br></p>
  61 <p class="p5">a = <span class="s2">SynthDef</span>(<span class="s3">"help-TWindex"</span>,{ <span class="s2">arg</span> w1=0.0, w2=0.5;</p>
  62 <p class="p6"><br></p>
  63 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">var</span> trig, index;</p>
  64 <p class="p5"><span class="Apple-tab-span">     </span>trig = <span class="s2">Impulse</span>.kr(6);</p>
  65 <p class="p5"><span class="Apple-tab-span">     </span>index = <span class="s2">TWindex</span>.kr(</p>
  66 <p class="p5"><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="Apple-tab-span">    </span>trig,<span class="Apple-converted-space"> </span></p>
  67 <p class="p5"><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="Apple-tab-span">    </span>[w1, w2, <span class="s2">SinOsc</span>.kr(0.3, 0, 0.5, 0.5)],<span class="s4">//modulate probability</span></p>
  68 <p class="p4"><span class="s5"><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="Apple-tab-span">    </span>1 </span>//do normalisation</p>
  69 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>);<span class="Apple-converted-space"> </span></p>
  70 <p class="p6"><span class="Apple-tab-span">     </span></p>
  71 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">Out</span>.ar(0,</p>
  72 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s2">SinOsc</span>.ar(</p>
  73 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s2">Select</span>.kr(index,[400, 500, 600]),</p>
  74 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>0, 0.2</p>
  75 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>)</p>
  76 <p class="p5"><span class="Apple-tab-span">     </span>)</p>
  77 <p class="p5">}).play;</p>
  78 <p class="p6"><br></p>
  79 <p class="p5">)</p>
  80 <p class="p6"><br></p>
  81 <p class="p5">a.setn(0, [0,0]);</p>
  82 <p class="p5">a.setn(0, [1,1]);</p>
  83 <p class="p5">a.setn(0, [1,0]);</p>
  84 <p class="p5">a.setn(0, [0,1]);</p>
  85 <p class="p6"><br></p>
  86 <p class="p6"><br></p>
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