HelpSource/Classes/LFPulse.schelp

   1 class::LFPulse
   2 summary::pulse oscillator
   3 categories::UGens>Generators>Deterministic
   4 related::Classes/LFSaw
   5
   6 description::
   7 A non-band-limited pulse oscillator. Outputs a high value of one and a low value of zero.
   8
   9 classmethods::
  10
  11 method::ar, kr
  12
  13 argument::freq
  14 frequency in Hertz
  15
  16 argument::iphase
  17 initial phase offset in cycles ( 0..1 )
  18
  19 argument::width
  20 pulse width duty cycle from zero to one.
  21
  22 argument::mul
  23
  24 argument::add
  25
  26 examples::
  27
  28 a plot:
  29 code::
  30 { LFPulse.ar(Line.kr(100, 800, 0.1)) }.plot(0.1);
  31 ::
  32
  33 50 Hz wave:
  34 code::
  35 { LFPulse.ar(50) * 0.1 }.play;
  36 ::
  37
  38 modulating frequency:
  39 code::
  40 { LFPulse.ar(XLine.kr(1, 200, 10), 0, 0.2, 0.1) }.play;
  41 ::
  42
  43 amplitude modulation:
  44 code::
  45 { LFPulse.kr(XLine.kr(1, 200, 10), 0, 0.2) * SinOsc.ar(440) * 0.1 }.play;
  46 ::
  47
  48 used as both Oscillator and LFO:
  49 code::
  50 { LFPulse.ar(LFPulse.kr(3, 0, 0.3, 200, 200), 0, 0.2, 0.1) }.play;
  51 ::
  52
  53 scope:
  54 code::
  55 Server.internal.boot;
  56 { LFPulse.ar(500, 0, MouseX.kr, 0.5) }.scope;
  57 ::
  58
  59 compare with band limited Pulse UGen:
  60 code::
  61 (
  62 {
  63     [
  64         Pulse.ar(100, 0.3, 0.5),
  65         LFPulse.ar(100, 0, 0.3, 0.5)
  66     ] * 0.2
  67 }.scope(bufsize: 44100, zoom: 5)
  68 )
  69 ::
  70