HelpSource/Classes/Select.schelp

   1 class:: Select
   2 summary:: Select output from an array of inputs.
   3 categories:: UGens>Multichannel>Select
   4 related:: Classes/SelectX, Classes/SelectXFocus, Classes/LinSelectX
   5
   6 Description::
   7 The output is selected from an array of inputs.
   8
   9 note:: All the UGens are continously running. This may not be the most efficient
  10 way if each input is CPU-expensive. ::
  11
  12 Note that the array is fixed at the time of writing the SynthDef, and the
  13 whole array is embedded in the SynthDef file itself.  For small arrays
  14 this is more efficient than reading from a buffer.
  15
  16
  17 classmethods::
  18
  19 method::ar, kr
  20
  21 argument::which
  22
  23 Integer index
  24
  25
  26 argument::array
  27
  28 Input array of signals
  29
  30
  31 Examples::
  32
  33 code::
  34 (
  35 SynthDef("help-Select",{ arg out=0;
  36
  37         var a,cycle;
  38         a = [
  39                         SinOsc.ar,
  40                         Saw.ar,
  41                         Pulse.ar
  42                 ];
  43         cycle = a.size  * 0.5;
  44         Out.ar(out,
  45                 Select.ar(LFSaw.kr(1.0,0.0,cycle,cycle),a) * 0.2
  46         )
  47 }).play;
  48
  49 )
  50
  51 //Here used as a sequencer:
  52 (
  53 SynthDef("help-Select-2",{ arg out=0;
  54
  55         var a,s,cycle;
  56         a = Array.fill(32,{ rrand(30,80) }).midicps;
  57         a.postln;
  58         cycle = a.size  * 0.5;
  59
  60         s = Saw.ar(
  61                         Select.kr(
  62                                 LFSaw.kr(1.0,0.0,cycle,cycle),
  63                                 a
  64                         ),
  65                         0.2
  66         );
  67         Out.ar(out,s )
  68 }).play;
  69 )
  70
  71 ::
  72