HelpSource/Classes/OneZero.schelp

   1 class:: OneZero
   2 summary:: One zero filter.
   3 related:: Classes/OnePole
   4 categories::  UGens>Filters>Linear
   5
   6
   7 Description::
   8
   9 A one zero filter. Implements the formula:
  10
  11 formula::
  12
  13 out(i) = ((1 - abs(coef)) * in(i)) + (coef * in(i-1)).
  14
  15 ::
  16
  17
  18 classmethods::
  19
  20 method::ar, kr
  21
  22 argument::in
  23
  24 The input signal.
  25
  26
  27 argument::coef
  28
  29 Feed forward coefficient.
  30
  31
  32 +0.5 makes a two point averaging filter
  33 (see also
  34 link::Classes/LPZ1:: ).
  35
  36
  37 -0.5 makes a differentiator
  38 (see also
  39 link::Classes/HPZ1:: ).
  40
  41
  42 +1 makes a single sample delay
  43 (see also
  44 link::Classes/Delay1:: ).
  45
  46
  47 -1 makes an inverted single sample delay.
  48
  49
  50 argument::mul
  51
  52 Output will be multiplied by this value.
  53
  54
  55 argument::add
  56
  57 This value will be added to the output.
  58
  59
  60 Examples::
  61
  62 code::
  63
  64 { OneZero.ar(WhiteNoise.ar(0.5), 0.5) }.play
  65
  66 { OneZero.ar(WhiteNoise.ar(0.5), -0.5) }.play
  67
  68 { OneZero.ar(WhiteNoise.ar(0.5), Line.kr(-0.5, 0.5, 10)) }.play
  69
  70 ::
  71