Help/UGens/Synth control/K2A.html

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  24 <p class="p1"><span class="s1"><b>K2A<span class="Apple-tab-span">      </span><span class="Apple-tab-span">    </span></b></span><b>control rate to audio rate converter</b></p>
  25 <p class="p2"><br></p>
  26 <p class="p2"><br></p>
  27 <p class="p1"><b>K2A.ar(in)</b></p>
  28 <p class="p2"><br></p>
  29 <p class="p2"><br></p>
  30 <p class="p2"><br></p>
  31 <p class="p1">To be able to play a control rate UGen into an audio rate UGen, sometimes the rate must be converted.</p>
  32 <p class="p1">K2A converts via linear interpolation.</p>
  33 <p class="p2"><br></p>
  34 <p class="p1"><b>in</b> - input signal</p>
  35 <p class="p3"><br></p>
  36 <p class="p4"><br></p>
  37 <p class="p4"><br></p>
  38 <p class="p5">{ <span class="s2">K2A</span>.ar(<span class="s2">WhiteNoise</span>.kr(0.3)) }.scope;</p>
  39 <p class="p6"><br></p>
  40 <p class="p6"><br></p>
  41 <p class="p7">// compare:</p>
  42 <p class="p6"><br></p>
  43 <p class="p5">(</p>
  44 <p class="p5">{<span class="Apple-converted-space"> </span></p>
  45 <p class="p5"><span class="Apple-tab-span">     </span>[</p>
  46 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s2">K2A</span>.ar(<span class="s2">WhiteNoise</span>.kr(0.3)),</p>
  47 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s2">WhiteNoise</span>.ar(0.3)</p>
  48 <p class="p5"><span class="Apple-tab-span">     </span>]</p>
  49 <p class="p5">}.scope;</p>
  50 <p class="p5">)</p>
  51 <p class="p6"><br></p>
  52 <p class="p6"><br></p>
  53 <p class="p5">(</p>
  54 <p class="p5">{<span class="Apple-converted-space"> </span></p>
  55 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">var</span> freq, blockSize, sampleRate;</p>
  56 <p class="p5"><span class="Apple-tab-span">     </span>blockSize = <span class="s2">Server</span>.internal.options.blockSize; <span class="s3">// usually 64</span></p>
  57 <p class="p5"><span class="Apple-tab-span">     </span>sampleRate = <span class="s2">Server</span>.internal.sampleRate;</p>
  58 <p class="p5"><span class="Apple-tab-span">     </span>freq = <span class="s2">MouseX</span>.kr(0.1, 40, 1) / blockSize * sampleRate;</p>
  59 <p class="p5"><span class="Apple-tab-span">     </span>[</p>
  60 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s2">K2A</span>.ar(<span class="s2">LFNoise0</span>.kr(freq)),</p>
  61 <p class="p5"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s2">LFNoise0</span>.ar(freq)</p>
  62 <p class="p5"><span class="Apple-tab-span">     </span>] * 0.3</p>
  63 <p class="p5">}.scope;</p>
  64 <p class="p5">)</p>
  65 <p class="p6"><br></p>
  66 <p class="p6"><br></p>
  67 <p class="p6"><br></p>
  68 <p class="p6"><br></p>
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