HelpSource/Classes/Lag.schelp

   1 class:: Lag
   2 summary:: Exponential lag
   3 related:: Classes/Lag2, Classes/Lag3, Classes/VarLag, Classes/LagUD
   4 categories::  UGens>Filters>Linear
   5
   6
   7 Description::
   8 This is essentially the same as  link::Classes/OnePole::  except that
   9 instead of supplying the coefficient directly, it is calculated from a 60
  10 dB lag time. This is the time required for the filter to converge to
  11 within 0.01% of a value. This is useful for smoothing out control
  12 signals.
  13
  14 For linear and other alternatives, see link::Classes/VarLag::.
  15
  16 classmethods::
  17
  18 method::ar, kr
  19
  20 argument::in
  21
  22 The input signal.
  23
  24
  25 argument::lagTime
  26
  27 60 dB lag time in seconds.
  28
  29
  30 argument::mul
  31
  32 Output will be multiplied by this value.
  33
  34
  35 argument::add
  36
  37 This value will be added to the output.
  38
  39
  40 Examples::
  41
  42 code::
  43 (
  44 // used to lag pitch
  45 {
  46     SinOsc.ar(                              // sine wave
  47         Lag.kr(                             // lag the modulator
  48             LFPulse.kr(4, 0, 0.5, 50, 400), // frequency modulator
  49             Line.kr(0, 1, 15)               // modulate lag time
  50         ),
  51         0,                                  // phase
  52         0.3                                 // sine amplitude
  53     )
  54 }.play
  55 )
  56 ::
  57