Help/UGens/InOut/XOut.html

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  31 <p class="p1"><span class="s1"><b>XOut</b></span><span class="s2"><b><span class="Apple-tab-span">      </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></b></span><b>send signal to a bus, crossfading with previous contents</b></p>
  32 <p class="p2"><br></p>
  33 <p class="p3"><span class="s3"><b>Inherits from: </b><a href="../../Core/Object.html"><b>Object</b></a></span><span class="s4"><b> : </b><a href="../../Core/Kernel/AbstractFunction.html"><span class="s5"><b>AbstractFunction</b></span></a><b> : </b><a href="../UGen.html"><span class="s5"><b>UGen</b></span></a><b> : </b><a href="AbstractOut.html"><span class="s6"><b>AbstractOut</b></span></a></span></p>
  34 <p class="p4"><br></p>
  35 <p class="p1"><b>*ar(bus, xfade, channelsArray) </b>- crossfade an audio bus.</p>
  36 <p class="p1"><b>*kr(bus, xfade, channelsArray) </b>- crossfade an control bus.</p>
  37 <p class="p2"><span class="Apple-tab-span">     </span></p>
  38 <p class="p1"><b>bus </b>- the index, or array of indexes, of busses to write to. The lowest index numbers are written to the audio hardware.</p>
  39 <p class="p1"><b>xfade </b>- crossfade level.</p>
  40 <p class="p5"><b>channelsArray </b>- an Array of channels or single output to write out. You cannot change the size of this once a SynthDef has been built.</p>
  41 <p class="p2"><br></p>
  42 <p class="p1">xfade is a level for the crossfade between what is on the bus and what you are sending.</p>
  43 <p class="p1">The algorithm is equivalent to this:</p>
  44 <p class="p2"><br></p>
  45 <p class="p1">bus_signal = (input_signal * xfade) + (bus_signal * (1 - xfade));</p>
  46 <p class="p2"><br></p>
  47 <p class="p1">See the <a href="../../ServerArchitecture/Server-Architecture.html"><span class="s7">Server-Architecture</span></a> and <a href="../../ServerArchitecture/Bus.html"><span class="s7">Bus</span></a> helpfiles for more information on buses and how they are used.<b><span class="Apple-tab-span">        </span></b></p>
  48 <p class="p4"><span class="Apple-tab-span">     </span></p>
  49 <p class="p6"><span class="Apple-tab-span">     </span>(</p>
  50 <p class="p6"><span class="Apple-tab-span">     </span><span class="s8">SynthDef</span>(<span class="s9">"help-SinOsc"</span>, { <span class="s8">arg</span> freq=440, out;<span class="Apple-converted-space"> </span></p>
  51 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s8">Out</span>.ar(out, <span class="s8">SinOsc</span>.ar(freq, 0, 0.1))<span class="Apple-converted-space"> </span></p>
  52 <p class="p6"><span class="Apple-tab-span">     </span>}).send(s);</p>
  53 <p class="p4"><span class="Apple-tab-span">     </span></p>
  54 <p class="p6"><span class="Apple-tab-span">     </span><span class="s8">SynthDef</span>(<span class="s9">"help-XOut"</span>, { <span class="s8">arg</span> out=0, xFade=1;</p>
  55 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="s8">var</span> source;</p>
  56 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>source = <span class="s8">PinkNoise</span>.ar(0.05);</p>
  57 <p class="p4"><br></p>
  58 <p class="p7"><span class="s3"><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span></span>// write to the bus, crossfading with previous contents</p>
  59 <p class="p6"><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span><span class="s8">XOut</span>.ar(out, xFade, source);</p>
  60 <p class="p4"><br></p>
  61 <p class="p6"><span class="Apple-tab-span">     </span>}).send(s);</p>
  62 <p class="p6"><span class="Apple-tab-span">     </span>)</p>
  63 <p class="p4"><span class="Apple-tab-span">     </span></p>
  64 <p class="p6"><span class="Apple-tab-span">     </span><span class="s8">Synth</span>(<span class="s9">"help-SinOsc"</span>, [<span class="s10">\freq</span>, 500]);</p>
  65 <p class="p6"><span class="Apple-tab-span">     </span>a = <span class="s8">Synth.tail</span>(s, <span class="s9">"help-XOut"</span>);</p>
  66 <p class="p4"><span class="Apple-tab-span">     </span></p>
  67 <p class="p4"><span class="Apple-tab-span">     </span></p>
  68 <p class="p6"><span class="Apple-tab-span">     </span>a.set(<span class="s10">\xFade</span>, 0.7);</p>
  69 <p class="p6"><span class="Apple-tab-span">     </span>a.set(<span class="s10">\xFade</span>, 0.4);</p>
  70 <p class="p6"><span class="Apple-tab-span">     </span>a.set(<span class="s10">\xFade</span>, 0.0);</p>
  71 <p class="p4"><span class="Apple-tab-span">     </span></p>
  72 <p class="p4"><span class="Apple-tab-span">     </span></p>
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