HelpSource/Classes/Trig1.schelp

   1 class:: Trig1
   2 summary:: Timed trigger.
   3 related:: Classes/Trig
   4 categories::  UGens>Triggers
   5
   6
   7 Description::
   8
   9 When a nonpositive to positive transition occurs at the input, Trig1
  10 outputs 1 for the specified duration, otherwise outputs 0.
  11
  12
  13 classmethods::
  14
  15 method::ar, kr
  16
  17 argument::in
  18
  19 Trigger. Trigger can be any signal. A trigger happens when the
  20 signal changes from non-positive to positive.
  21
  22
  23 argument::dur
  24
  25 Duration of the trigger output.
  26
  27
  28 Examples::
  29
  30 code::
  31
  32 { Trig1.ar(Dust.ar(1), 0.2) * FSinOsc.ar(800, 0.5) }.play
  33
  34
  35 To create a fixed duration gate
  36 (
  37
  38 SynthDef("trig1",{ arg dur=0.125;
  39         var gate;
  40         gate = Trig1.kr(1.0,dur);
  41         OffsetOut.ar(0,
  42                 SinOsc.ar(800, 0.3)
  43                 * EnvGen.kr(
  44                         Env([0,0.1,0.1,0],[0.01,1.0,0.01],[-4,4],2),
  45                         gate,
  46                         doneAction: 2)
  47         )
  48 }).send(s);
  49
  50 Routine({
  51         1.0.wait;
  52         100.do({
  53                 s.sendBundle(0.05,["s_new", "trig1" ,-1,0,0,0,rrand(0.02,0.25)]);
  54                 0.25.wait
  55         })
  56 }).play(SystemClock)
  57
  58 )
  59
  60 This should sound like a continous sine wave, although it is actually a series of 0.25 second synths.
  61 (
  62 SynthDef("trig1",{
  63         var gate;
  64         gate = Trig1.kr(1.0,0.25);
  65         OffsetOut.ar(0,
  66                 SinOsc.ar(800, 0.3)
  67                 * EnvGen.kr(
  68                         Env([0,0.1,0.1,0],[0.01,1.0,0.01],[-4,4],2),
  69                         gate,
  70                         doneAction: 2)
  71         )
  72 }).send(s);
  73
  74 Routine({
  75         1.0.wait;
  76         100.do({
  77                 s.sendBundle(0.05,["s_new", "trig1" ,-1]);
  78                 0.25.wait
  79         })
  80 }).play(SystemClock)
  81
  82 )
  83
  84 ::
  85