Packages

object InTrig extends Serializable

A UGen which generates a trigger anytime a control bus is set.

Any time the bus is "touched" i.e. has its value set (using "/c_set" etc.), a single impulse trigger will be generated. Its amplitude is the value that the bus was set to. Note that if a signal is continuously written to that bus, for instance using Out.kr , only one initial trigger is generated once that ugen starts writing, but no successive triggers are generated.

Examples
// envelope trigger
val c = Bus.control(s)

val x = play {
  val tr = InTrig.kr(c.index)
  SinOsc.ar * EnvGen.kr(Env.perc, gate = tr, levelScale = tr)
}

c.set(1.0)
c.set(0.2)
c.set(0.1)

x.free(); c.free()
See also

In

TrigControl

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  12. def kr(bus: GE, numChannels: Int = 1): InTrig

    bus

    the index of the control bus to read in from.

    numChannels

    the number of channels (i.e. adjacent buses) to read in. Since this is a constant, a change in number of channels of the underlying bus must be reflected by creating different SynthDefs.

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