HelpSource/Classes/Amplitude.schelp

   1 class:: Amplitude
   2 summary:: Amplitude follower
   3 categories:: UGens>Analysis>Amplitude
   4
   5 description::
   6 Tracks the peak amplitude of a signal.
   7
   8 classmethods::
   9
  10 method:: ar, kr
  11
  12 argument::in
  13 Input signal
  14
  15 argument::attackTime
  16 60dB convergence time for following attacks.
  17
  18 argument::releaseTime
  19 60dB convergence time for following decays.
  20
  21 examples::
  22
  23 code::
  24 (
  25 // use input amplitude to control SinOsc frequency
  26 {
  27     SinOsc.ar(
  28             Amplitude.kr(
  29                         Blip.ar(3, 20) * LFNoise1.kr(0.1).range(0, 1),
  30                         MouseX.kr(0.001, 1, 1),
  31                         MouseY.kr(0.001, 1, 1),
  32                         1200,
  33                         400
  34             ),
  35             0, 0.3)
  36 }.play;
  37 )
  38 ::
  39
  40 code::
  41 // use input amplitude to control Pulse amplitude - use headphones to prevent feedback.
  42 { Pulse.ar(90, 0.3, Amplitude.kr(SoundIn.ar(0))) }.play;
  43 ::
  44
  45 code::
  46 (
  47 // use input amplitude to control SinOsc frequency - use headphones to prevent feedback.
  48 {
  49     SinOsc.ar(
  50             Amplitude.kr(
  51                         SoundIn.ar(0),
  52                         0.01,
  53                         0.01,
  54                         1200,
  55                         400
  56             ),
  57             0, 0.3)
  58 }.play;
  59 )
  60 ::