chp3.scd

// cf. https://github.com/brunoruviaro/SynthDefs-for-Patterns/blob/master/laserbeam.scd
// cf. https://gist.github.com/kn1kn1/bfb750a57895b804907c
(
SynthDef("laserbeam", {
    arg out = 0, pan = 0.0, freq = 440, amp = 0.1, dur = 0.25;
    var snd, freqenv, ampenv;
    // frequency envelope
	freqenv = Line.kr(1, 0, dur/2, doneAction: 2);
	// amplitude envelope
	ampenv = Line.kr(1, 0, dur/2, doneAction: 2);
	// snd = LFTri.ar(freq: freq * freqenv, mul: ampenv);
	snd = SinOsc.ar(freq: freq * freqenv, mul: ampenv);
    Out.ar(out, Pan2.ar(snd, pan));
}).add;
)

(
Pbind(
	\instrument, "laserbeam",
	\pan, Pwhite(-1.0, 1.0),
	// \midinote, Pwhite(145, 155),
	\midinote, 150,
	\amp, 0.25,
	\dur, 0.125
).play;
)