HelpSource/Classes/LinCongN.schelp

   1 class:: LinCongN
   2 summary:: Linear congruential chaotic generator
   3 categories:: UGens>Generators>Chaotic
   4 related:: Classes/LinCongL, Classes/LinCongC
   5
   6 description::
   7 A non-interpolating sound generator based on the difference equation:
   8
   9 code::
  10         x[n+1] = (a * x[n] + c) % m
  11 ::
  12 warning:: revise formulae converted to c like code ::
  13
  14 The output signal is automatically scaled to a range of [-1, 1].
  15
  16 classmethods::
  17 method:: ar
  18 argument:: freq
  19 Iteration frequency in Hertz
  20 argument:: a
  21 Multiplier amount
  22 argument:: c
  23 Increment amount
  24 argument:: m
  25 Modulus amount
  26 argument:: xi
  27 Initial value of x
  28 argument:: mul
  29 argument:: add
  30
  31 examples::
  32 code::
  33 // default initial params
  34 { LinCongN.ar(MouseX.kr(20, SampleRate.ir)) * 0.2 }.play(s);
  35 ::
  36
  37 code::
  38 // randomly modulate params
  39 (
  40 { LinCongN.ar(
  41         LFNoise2.kr(1, 1e4, 1e4),
  42         LFNoise2.kr(0.1, 0.5, 1.4),
  43         LFNoise2.kr(0.1, 0.1, 0.1),
  44         LFNoise2.kr(0.1)
  45 ) * 0.2 }.play(s);
  46 )
  47 ::
  48
  49 code::
  50 // as frequency control...
  51 (
  52 {
  53 SinOsc.ar(
  54         LinCongN.ar(
  55                 40,
  56                 LFNoise2.kr(0.1, 0.1, 1),
  57                 LFNoise2.kr(0.1, 0.1, 0.1),
  58                 LFNoise2.kr(0.1),
  59                 0, 500, 600
  60         )
  61 ) * 0.4 }.play(s);
  62 )
  63 ::