HelpSource/Classes/CuspN.schelp

   1 class:: CuspN
   2 summary:: Cusp map chaotic generator
   3 categories:: UGens>Generators>Chaotic
   4 related:: Classes/CuspL
   5
   6 description::
   7 A non-interpolating sound generator based on the difference equation:
   8
   9 code::
  10         x[n+1] = a - b * sqrt(abs(x[n]))
  11 ::
  12 warning:: revise formulae converted to c like code ::
  13
  14 classmethods::
  15
  16 method:: ar
  17 argument::freq
  18 Iteration frequency in Hertz
  19 argument::a
  20 Equation variable
  21 argument::b
  22 Equation variable
  23 argument::xi
  24 Initial value of x
  25 argument::mul
  26 argument::add
  27
  28 examples::
  29 code::
  30 // vary frequency
  31 { CuspN.ar(MouseX.kr(20, SampleRate.ir), 1.0, 1.99) * 0.3 }.play(s);
  32
  33 // mouse-controlled params
  34 { CuspN.ar(SampleRate.ir/4, MouseX.kr(0.9,1.1,1), MouseY.kr(1.8,2,1)) * 0.3 }.play(s);
  35
  36 // as a frequency control
  37 { SinOsc.ar(CuspN.ar(40, MouseX.kr(0.9,1.1,1), MouseY.kr(1.8,2,1))*800+900)*0.4 }.play(s);
  38 ::