HelpSource/Classes/Pwhite.schelp

   1 class:: Pwhite
   2 summary:: random values with uniform distribution
   3 related:: Classes/Pgauss
   4 categories:: Streams-Patterns-Events>Patterns>Random
   5
   6 ClassMethods::
   7
   8 method::new
   9
  10 argument::lo
  11 lower boundary of values.
  12
  13 argument::hi
  14 upper boundary of values.
  15
  16 argument::length
  17 number of values produced.
  18
  19 Examples::
  20
  21 code::
  22 (
  23 var a;
  24 a = Pwhite(0.0, 1.0, inf);
  25 c = a.asStream.nextN(500);
  26 w = Window.new("Pwhite", Rect(10, 10, 540, 800));
  27 // plot the values
  28 c.plot(bounds: Rect(10, 10, 520, 380), discrete: true, parent: w);
  29 // a histogram of the values
  30 c.histo(500).plot(bounds: Rect(10, 410, 520, 380), parent: w);
  31 )
  32
  33 (
  34 var a;
  35 a = Pwhite(0.0, 1.0, inf);
  36 a.asStream.nextN(1000).plot;
  37 )
  38
  39
  40 // sound example
  41 (
  42 SynthDef(\help_sinegrain,
  43         { arg out=0, freq=440, sustain=0.05;
  44                 var env;
  45                 env = EnvGen.kr(Env.perc(0.01, sustain, 0.2), doneAction:2);
  46                 Out.ar(out, SinOsc.ar(freq, 0, env))
  47         }).add;
  48 )
  49
  50
  51 (
  52 var a;
  53 a = Pwhite(0.0, 1.0, inf).asStream;
  54 {
  55         loop {
  56                 Synth(\help_sinegrain, [\freq, a.next * 600 + 300]);
  57                 0.02.wait;
  58         }
  59 }.fork;
  60 )
  61
  62 // this is equivalent to:
  63 (
  64 {
  65         loop {
  66                 Synth(\help_sinegrain, [\freq, rrand(0.0, 1.0) * 600 + 300]);
  67                 0.02.wait;
  68         }
  69 }.fork;
  70 )
  71 ::