Linen      simple linear envelope generator

Linen.kr(  gate = 1.0, attackTime = 0.01, susLevel = 1.0, releaseTime = 1.0, doneAction = 0 )

See [UGen-doneActions] for more detail.

// trigged

(

SynthDef("help-Linen",{ arg out = 0;

Out.ar(out,

Linen.kr(Impulse.kr(2), 0.01, 0.6, 1.0, doneAction: 0) * SinOsc.ar(440, 0, 0.1)

)

}).play;

)

// play once and end the synth

(

SynthDef("help-Linen",{ arg out=0;

Out.ar(out,

Linen.kr(Impulse.kr(0), 0.01, 0.6, 1.0, doneAction: 2) * SinOsc.ar(440, 0, 0.1)

)

}).play;

)

// play once and sustain

(

x = SynthDef("help-Linen",{ arg gate = 1, out = 0; // use gate arg for release

Out.ar(out,

Linen.kr(gate, 0.01, 0.6, 1.0, doneAction: 2) * SinOsc.ar(440, 0, 0.1)

)

}).play;

)

x.release(4); // change the release time

// longer gate, can pass in duration

(

SynthDef("help-Linen",{ arg out = 0, dur = 0.1;

var gate;

gate = Trig.kr(1.0, dur);

Out.ar(out,

Linen.kr(gate, 0.01, 0.6, 1.0, doneAction: 2) * SinOsc.ar(440, 0, 0.1)

)

}).play(nil, [\out, 0, \dur, 2.0]);

)

// used below in a Routine varying the releaseTime

(

SynthDef("help-Linen",{ arg out=0,freq=440,attackTime=0.01,susLevel=0.6,releaseTime=0.1;

Out.ar(out,

Linen.kr(Impulse.kr(0), attackTime, susLevel, releaseTime, doneAction: 2)

* SinOsc.ar(freq, 0, 0.1)

)

}).send(s);

)

(

// debussey sleeping through math class

x = Pbrown(0.01, 2.0, 0.2, inf).asStream;

Routine({

loop({

Synth.grain("help-Linen",[\freq, (rrand(20, 50) * 2).midicps, \releaseTime, x.next]);

0.25.wait;

})

}).play(TempoClock.default)

)

(

SynthDef("help-Linen",{ arg out = 0;

Out.ar(out,

Linen.kr(Impulse.kr(2),

0.01,

// sustain level is polled at time of trigger

FSinOsc.kr(0.1).range(0, 1),

1.0,

doneAction: 0)

* SinOsc.ar(440, 0, 0.1)

)

}).play;

)