Help/UGens/Multichannel/Panners/SelectXFocus.html

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  25 <p class="p1"><span class="s1"><b>SelectXFocus<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>mix one output from many sources</b></p>
  26 <p class="p2"><br></p>
  27 <p class="p3"><br></p>
  28 <p class="p1">superclass: Object</p>
  29 <p class="p3"><br></p>
  30 <p class="p1">The output is mixed from an array of inputs, linearly interpolating from a number of adjacent channels.</p>
  31 <p class="p1">A focus argument allows to control how many adjacent sources are mixed. (by adc)</p>
  32 <p class="p2"><br></p>
  33 <p class="p1"><b><span class="Apple-tab-span">  </span>SelectXFocus.ar(which, array, focus)</b></p>
  34 <p class="p1"><b><span class="Apple-tab-span">  </span>SelectXFocus.kr(which, array, focus)</b></p>
  35 <p class="p2"><br></p>
  36 <p class="p2"><br></p>
  37 <p class="p4">// examples<span class="Apple-converted-space"> </span></p>
  38 <p class="p5">(</p>
  39 <p class="p5">{</p>
  40 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">var</span> a;</p>
  41 <p class="p5"><span class="Apple-tab-span">     </span>a = [</p>
  42 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s2">Saw</span>.ar(<span class="s2">LFSaw</span>.kr(3 * [1, 1.01], 0, 100, 230)),</p>
  43 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s2">SinOsc</span>.ar,</p>
  44 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s2">Pulse</span>.ar(<span class="s2">LFPulse</span>.kr(3 * [1, 1.02], 0, 0.4, 100, 230)),</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">SinOsc</span>.ar(<span class="s2">SinOsc</span>.kr(4 * [1, 1.03], 0, 200, 300))</p>
  46 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>];</p>
  47 <p class="p6"><span class="Apple-tab-span">     </span></p>
  48 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">SelectXFocus</span>.ar(<span class="s2">MouseX</span>.kr(0, 1) * a.size, a, <span class="s2">MouseY</span>.kr(0, a.size)) * 0.2</p>
  49 <p class="p5">}.play;</p>
  50 <p class="p5">)</p>
  51 <p class="p2"><span class="Apple-tab-span">     </span></p>
  52 <p class="p1">Note: all the ugens are continously running. This may not be the most efficient way if each input is<span class="Apple-converted-space">  </span>cpu-expensive. The array is fixed at the time of writing the SynthDef, and the whole array is embedded in the SynthDef file itself.<span class="Apple-converted-space">  </span>For small arrays this is more efficient than reading from a buffer.</p>
  53 <p class="p2"><br></p>
  54 <p class="p7"><br></p>
  55 <p class="p7"><br></p>
  56 <p class="p4">// radio tuner</p>
  57 <p class="p4">// (jrh) (cc 2006)</p>
  58 <p class="p5">(</p>
  59 <p class="p5">{</p>
  60 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">var</span> a, n, mx, my, mwrap;</p>
  61 <p class="p5"><span class="Apple-tab-span">     </span>n = 8;</p>
  62 <p class="p5"><span class="Apple-tab-span">     </span>mx = <span class="s2">MouseX</span>.kr(0, 1, 0, 0.1);</p>
  63 <p class="p5"><span class="Apple-tab-span">     </span>my = <span class="s2">MouseY</span>.kr;</p>
  64 <p class="p5"><span class="Apple-tab-span">     </span>mwrap = { <span class="s2">|pmin, pmax, min, max|</span> sin(mx * <span class="s2">ExpRand</span>(pmin, pmax)) + 1 * 0.5 * <span class="s2">ExpRand</span>(min, max) };</p>
  65 <p class="p5"><span class="Apple-tab-span">     </span>a = {</p>
  66 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s2">var</span> freq, fmul, phase;</p>
  67 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>freq = mwrap.(10, 40, 200, 5000) + <span class="s2">ExpRand</span>(200, 3000);</p>
  68 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>fmul = <span class="s2">LFNoise0</span>.kr(<span class="s2">ExpRand</span>(0.1, 8)).round(1/6).exprange(1, <span class="s2">Rand</span>(1, 1.2));</p>
  69 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>phase = <span class="s2">LFNoise2</span>.ar(mwrap.(1, 20, 10, 1000), <span class="s2">Rand</span>(2, 5));</p>
  70 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s2">SinOsc</span>.ar(freq * fmul, phase)</p>
  71 <p class="p5"><span class="Apple-tab-span">     </span>} ! n;</p>
  72 <p class="p5"><span class="Apple-tab-span">     </span>a = a.add(</p>
  73 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s2">SinOsc</span>.ar(<span class="s2">LFDNoise0</span>.kr(11, <span class="s2">SetResetFF</span>.kr(*<span class="s2">Dust</span>.kr([1, 2] * 0.3))).range(0, 700) + 220)</p>
  74 <p class="p5"><span class="Apple-tab-span">     </span>);</p>
  75 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">SelectXFocus</span>.ar(mx * n, a, my * n) * 0.2 + <span class="s2">OnePole</span>.ar(<span class="s2">PinkNoise</span>.ar(0.5 ! 2), 0.4)<span class="Apple-converted-space"> </span></p>
  76 <p class="p5"><span class="Apple-tab-span">     </span>* <span class="s2">Line</span>.kr(0, 1, 3);</p>
  77 <p class="p5">}.play;</p>
  78 <p class="p5">)</p>
  79 <p class="p2"><br></p>
  80 <p class="p6"><br></p>
  81 <p class="p4">// jimmy played harmonica in the pub where I was born</p>
  82 <p class="p4">// (hh) (jrh) (cc 2006)</p>
  83 <p class="p5">(</p>
  84 <p class="p5">{</p>
  85 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">var</span> blas, zieh, mx, my, trig, which, amp, u, schnauf;</p>
  86 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">var</span> del = 9, det = 0.1;</p>
  87 <p class="p5"><span class="Apple-tab-span">     </span>schnauf = 0.3;</p>
  88 <p class="p5"><span class="Apple-tab-span">     </span>mx = <span class="s2">MouseX</span>.kr;</p>
  89 <p class="p5"><span class="Apple-tab-span">     </span>my = <span class="s2">MouseY</span>.kr(0.1, 2, 1);</p>
  90 <p class="p6"><span class="Apple-tab-span">     </span></p>
  91 <p class="p5"><span class="Apple-tab-span">     </span>blas = [0, 12, 24] +.x [60, 64, 67] ++ [60+36];</p>
  92 <p class="p5"><span class="Apple-tab-span">     </span>zieh = [62, 67, 71, <span class="Apple-converted-space">  </span>74, 77, 81, 83, <span class="Apple-converted-space">  </span>86, 89, 93];</p>
  93 <p class="p6"><br></p>
  94 <p class="p5"><span class="Apple-tab-span">     </span>trig = <span class="s2">Dust</span>.kr(1);</p>
  95 <p class="p5"><span class="Apple-tab-span">     </span>which = <span class="s2">ToggleFF</span>.kr(<span class="s2">TDelay</span>.kr(trig, schnauf));</p>
  96 <p class="p5"><span class="Apple-tab-span">     </span>amp = <span class="s2">EnvGen</span>.kr(<span class="s2">Env</span>([1, 0, 1], [schnauf, schnauf]), trig);</p>
  97 <p class="p5"><span class="Apple-tab-span">     </span>blas = <span class="s2">Select</span>.kr(which, [blas, zieh]);</p>
  98 <p class="p8"><span class="s3"><span class="Apple-tab-span">    </span>u = </span>SelectXFocus<span class="s3">.ar(</span></p>
  99 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>mx * blas.size,<span class="Apple-tab-span">     </span></p>
 100 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>blas.collect {<span class="s2">|f|</span></p>
 101 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s2">Pulse</span>.ar((<span class="s2">Rand</span>(-0.04, 0.09) + f).midicps * 0.5, <span class="s2">0.48</span> + <span class="s2">LFNoise1</span>.kr(0.06, 0.1), 0.2)</p>
 102 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>},</p>
 103 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span>my</p>
 104 <p class="p5"><span class="Apple-tab-span">     </span>) * <span class="s2">Slope</span>.kr(mx + my).abs.lag2(2) * amp;</p>
 105 <p class="p5"><span class="Apple-tab-span">     </span>u = <span class="s2">Pan2</span>.ar(<span class="s2">OnePole</span>.ar(u, -0.3), mx * 2 - 1);</p>
 106 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">DelayL</span>.ar(<span class="s2">BPF</span>.ar(u * 2, 1500, 0.3), del + det, <span class="s2">LFNoise2</span>.kr(0.2, det, del)) + u</p>
 107 <p class="p5">}.play;</p>
 108 <p class="p5">);</p>
 109 <p class="p6"><br></p>
 110 <p class="p6"><br></p>
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