HelpSource/Classes/Changed.schelp

   1 class:: Changed
   2 categories:: UGens>Triggers, UGens>Filters>Linear
   3 summary:: Triggers when a value changes
   4
   5 description::
   6 Triggers when a value changes.
   7
   8 classmethods::
   9 method:: ar, kr
  10 A special case fixed filter.
  11
  12 argument:: in
  13 signal input
  14 argument:: thresh
  15 threshold
  16
  17 discussion::
  18 Implements the formula:
  19 code::
  20 out(i) = abs(in(i) - in(i-1)) > thresh
  21 ::
  22
  23 examples::
  24
  25 detect changes in a signal:
  26 code::
  27 (
  28 {
  29         var changingSignal = LFNoise0.ar(1000);
  30         var changed = Changed.ar(changingSignal);
  31         [changingSignal, changed]
  32 }.plot2
  33 );
  34 ::
  35