HelpSource/Classes/LFPar.schelp

   1 class:: LFPar
   2 summary:: Parabolic oscillator
   3 related:: Classes/LFCub, Classes/LFPulse, Classes/LFSaw, Classes/LFTri
   4 categories::  UGens>Generators>Deterministic
   5
   6
   7 Description::
   8
   9 A sine-like shape made of two parabolas.  It has audible odd harmonics and is non-band-limited.
  10 Output ranges from -1 to +1.
  11
  12 classmethods::
  13
  14 method::ar, kr
  15
  16 argument::freq
  17 Frequency in Hertz.
  18
  19 argument::iphase
  20
  21 Initial phase in cycles ( 0..1 ).
  22
  23
  24 argument::mul
  25 Output will be multiplied by this value.
  26
  27 argument::add
  28 This value will be added to the output.
  29
  30 Examples::
  31
  32 code::
  33 // a plot
  34 { LFPar.ar(Line.kr(100, 800, 0.1)) }.plot(0.1);
  35
  36 // 440 Hz wave
  37 { LFPar.ar(440) * 0.1 }.play;
  38
  39 // modulating frequency:
  40 { LFPar.ar(XLine.kr(100, 2000, 10)) * 0.1 }.play;
  41
  42 // amplitude modulation:
  43 { LFPar.kr(XLine.kr(1, 200, 10)) * SinOsc.ar(440) * 0.1 }.play;
  44
  45 // used as both Oscillator and LFO:
  46 { LFPar.ar(LFPar.kr(3, 0.3, 200, 400)) * 0.1 }.play;
  47
  48
  49 // more examples:
  50
  51 { LFPar.ar(LFPar.kr(LFPar.kr(0.2,0,8,10), 0, 400,800),0,0.1) }.play
  52 { LFPar.ar(LFPar.kr(0.2, 0, 400,800),0,0.1) }.play
  53 { LFPar.ar(800,0,0.1) }.play
  54 { LFPar.ar(XLine.kr(100,8000,30),0,0.1) }.play
  55
  56
  57 // compare:
  58
  59 { LFCub.ar(LFCub.kr(LFCub.kr(0.2,0,8,10),0, 400,800),0,0.1) }.play
  60 { LFCub.ar(LFCub.kr(0.2, 0, 400,800),0,0.1) }.play
  61 { LFCub.ar(800,0,0.1) }.play
  62 { LFCub.ar(XLine.kr(100,8000,30),0,0.1) }.play
  63
  64 { SinOsc.ar(SinOsc.kr(SinOsc.kr(0.2,0,8,10),0, 400,800),0,0.1) }.play
  65 { SinOsc.ar(SinOsc.kr(0.2, 0, 400,800),0,0.1) }.play
  66 { SinOsc.ar(800,0,0.1) }.play
  67 { SinOsc.ar(XLine.kr(100,8000,30),0,0.1) }.play
  68
  69 { LFTri.ar(LFTri.kr(LFTri.kr(0.2,0,8,10),0, 400,800),0,0.1) }.play
  70 { LFTri.ar(LFTri.kr(0.2, 0, 400,800),0,0.1) }.play
  71 { LFTri.ar(800,0,0.1) }.play
  72 { LFTri.ar(XLine.kr(100,8000,30),0,0.1) }.play
  73 ::
  74