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Engine_PrimitiveString.sc
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Engine_PrimitiveString.sc
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Engine_PrimitiveString : CroneEngine {
classvar numVoices = 19;
var controlBus;
var voices;
*new { arg context, doneCallback;
^super.new(context, doneCallback);
}
alloc {
controlBus = Dictionary.new;
controlBus.add(\envType -> Bus.control(context.server));
controlBus.add(\wave -> Bus.control(context.server));
controlBus.add(\noise -> Bus.control(context.server));
controlBus.add(\comb -> Bus.control(context.server));
controlBus.add(\brightness -> Bus.control(context.server));
controlBus.add(\attack -> Bus.control(context.server));
controlBus.add(\release -> Bus.control(context.server));
controlBus.add(\amp -> Bus.control(context.server));
SynthDef.new(\string, {
arg out,
// per-voice params
t_trig = 0,
gate = 0,
hz = 220,
vel = 0,
pos = 0.5,
pan = 0;
// global params
var envType = In.kr(controlBus[\envType]);
var wave = In.kr(controlBus[\wave]);
var noiseAmount = In.kr(controlBus[\noise]);
var combAmount = In.kr(controlBus[\comb]);
var brightness = In.kr(controlBus[\brightness]);
var attack = In.kr(controlBus[\attack]);
var release = In.kr(controlBus[\release]);
var amp = In.kr(controlBus[\amp]) * 0.25;
// envelopes
var pluck = EnvGen.ar(Env.perc(attack, release), t_trig);
var bow = EnvGen.ar(Env.asr(attack, 1, release), gate);
var env = Select.kr(envType, [pluck, bow]);
// derive parameter smoothing time from envelope, so we can avoid smoothing params when silent
// -- which can cause pops/thumps when new notes are triggered
var lagTime = 0.01 * (env > 0.0001);
// overall volume curve
var vol = env * Lag.kr(vel, lagTime).clip(0, 1);
// waveforms
var posSmooth = Lag.kr(pos.min(1 - pos), lagTime).max(1/32); // should never really be 0, DC is no fun
var hzSmooth = Lag.kr(hz, lagTime);
var pulse = Pulse.ar(hzSmooth, posSmooth);
var noise = WhiteNoise.ar(vol * vol * vol * vol * noiseAmount);
var nulse = ((pulse + 1) * noise).distort + pulse;
var saw = Saw.ar(hzSmooth);
var comb_delay = posSmooth / hzSmooth;
var comb_decay = vol * combAmount;
var comb_factor = 0.001 ** (comb_delay / comb_decay); // TODO: can you skip this for better efficiency?
var comb = CombL.ar(saw, 1/16, comb_delay, comb_decay) * comb_factor;
var caw = comb.distort + saw;
// bring it all together
var tone = SelectX.ar(wave, [nulse, caw]);
var nyquist = SampleRate.ir / 2;
var cutoff = vol.linexp(0, 1, hzSmooth, brightness * nyquist).min(nyquist);
Out.ar(out, Pan2.ar(SVF.ar(tone, cutoff), pan, vol * amp));
}).add;
context.server.sync;
controlBus[\envType].setSynchronous(0);
controlBus[\wave].setSynchronous(-1);
controlBus[\noise].setSynchronous(0.25);
controlBus[\comb].setSynchronous(0.2);
controlBus[\brightness].setSynchronous(0.7);
controlBus[\attack].setSynchronous(0.01);
controlBus[\release].setSynchronous(0.6);
controlBus[\amp].setSynchronous(0.5);
voices = Array.fill(numVoices, {
Synth.new(\string, [
\out, context.out_b
]);
});
this.addCommand("trig", "i", {
arg msg;
var voice = voices[msg[1] - 1];
// msg.postln;
voice.set(\t_trig, 1);
});
this.addCommand("gate", "ii", {
arg msg;
var voice = voices[msg[1] - 1];
var state = msg[2];
// msg.postln;
voice.set(\gate, state);
});
this.addCommand("hz", "if", {
arg msg;
var voice = voices[msg[1] - 1];
// msg.postln;
voice.set(\hz, msg[2]);
});
this.addCommand("vel", "if", {
arg msg;
var voice = voices[msg[1] - 1];
// msg.postln;
voice.set(\vel, msg[2]);
});
this.addCommand("pos", "if", {
arg msg;
var voice = voices[msg[1] - 1];
// msg.postln;
voice.set(\pos, msg[2]);
});
this.addCommand("pan", "if", {
arg msg;
var voice = voices[msg[1] - 1];
// msg.postln;
voice.set(\pan, msg[2]);
});
this.addCommand("env_type", "i", {
arg msg;
// msg.postln;
controlBus[\envType].set(msg[1] - 1);
});
this.addCommand("wave", "f", {
arg msg;
// msg.postln;
controlBus[\wave].set(msg[1]);
});
this.addCommand("noise", "f", {
arg msg;
// msg.postln;
controlBus[\noise].set(msg[1]);
});
this.addCommand("comb", "f", {
arg msg;
// msg.postln;
controlBus[\comb].set(msg[1]);
});
this.addCommand("brightness", "f", {
arg msg;
// msg.postln;
controlBus[\brightness].set(msg[1]);
});
this.addCommand("attack", "f", {
arg msg;
// msg.postln;
controlBus[\attack].set(msg[1]);
});
this.addCommand("release", "f", {
arg msg;
// msg.postln;
controlBus[\release].set(msg[1]);
});
this.addCommand("amp", "f", {
arg msg;
// msg.postln;
controlBus[\amp].set(msg[1]);
});
}
free {
controlBus.do({ |bus| bus.free; });
voices.do({ |synth| synth.free; });
}
}