«OSC etude #1» by emergent

on 20 Mar'21 14:36 in

3 bandpass-filtered sawtooth waves, center frequency of bandpass filter modulated by OSC via the multitouch feature of Sensors2Osc

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// OSC etude 1

(
s = Server.local;
s.options.sampleRate_(44100);
s.options.memSize_(65536 * 4);
s.boot;

// global variables and buses

~out = 0;

// make buses
~makeBuses = {~revBus = Bus.audio(s, 2)};

// make nodes
~makeNodes = {
	s.bind({
		~mGr = Group.new; // marimba group
		~effects = Group.after(~mGr);
		~reverb = Synth(\reverb, [\in, ~revBus, \out, ~out], ~effects, addAction:\addToTail);
	});
};

~cleanup = {
	s.freeAll;
	Buffer.freeAll;
	OSCdef.freeAll;
	s.newBusAllocators;
	ServerBoot.removeAll;
	ServerTree.removeAll;
	ServerQuit.removeAll;
};

// register functions
ServerBoot.add(~makeBuses);
ServerQuit.add(~cleanup);

// OSCdefs
OSCdef.new(\multi1,
	{
 		arg msg;
		//[msg].postln;
		~marimba[0].set(\rq, msg[1].linlin(0.0,1.0,0.03,0.007));
		~marimba[0].set(\cf, msg[2].linlin(0.0,1.0,110,880));
	},
	'/touch1'
);

OSCdef.new(\multi2,
	{
 		arg msg;
		//[msg].postln;
		~marimba[1].set(\rq, msg[1].linlin(0.0,1.0,0.03,0.007));
		~marimba[1].set(\cf, msg[2].linlin(0.0,1.0,110,880));
	},
	'/touch2'
);

OSCdef.new(\multi3,
	{
 		arg msg;
		//[msg].postln;
		~marimba[2].set(\rq, msg[1].linlin(0.0,1.0,0.03,0.007));
		~marimba[2].set(\cf, msg[2].linlin(0.0,1.0,110,880));
	},
	'/touch3'
);

s.waitForBoot({
	s.sync;
	// SynthDefs
	SynthDef(\marimba, {
		var sig, env, rq;
		rq = \rq.kr(0.03);
		env = Env.asr(\atk.ir(0.25), 0.5, \rel.ir(1)).kr(2, \gate.kr(1));
		sig = LFSaw.ar(
			LFNoise1.kr(
				LFNoise1.kr(6).range(\rmin.kr(2), \rmax.kr(16)),
				0.9,
			).exprange(\fmin.kr(4),\fmax.kr(12))
		)!2;
		sig = BPF.ar(sig, \cf.kr(200), rq, 1/rq.sqrt);
		sig = sig * env * \amp.kr(0.45);
		Out.ar(\out.ir(~out), sig * \dry.kr(1));
		Out.ar(\fx.ir(~revBus), sig * (1-\dry.kr(1)))
	}).add;

	// my go-to reverb
	SynthDef.new(\reverb, {
		var sig;
		sig = JPverb.ar(
			In.ar(\in.ir(~revBus), 2),
			\rtime.kr(4),
			\damp.kr(0.75),
			\size.kr(4.5),
			\earlyDiff.kr(0.8),
			\modDepth.kr(0.12),
			\modFreq.kr(2),
			\low.kr(1),
			\mid.kr(0.9),
			\high.kr(0.8)
		);
		sig = sig * \revAmp.kr(0.5);
	Out.ar(\out.kr(~out), sig);
	}).add;

s.sync;

ServerTree.add(~makeNodes);
s.freeAll;

s.sync;
"done".postln;
});
)
// start performance; modulate up to three of the "marimbas" via multitouch on Sensors2Osc
(
~marimba = 3.collect{
	Synth(\marimba, [\rq, 0.008, \cf, (Scale.minorPentatonic.degrees+49).choose.midicps, \dry, rrand(0.25,0.45)], ~mGr);
};
)

// record if wanted
s.record;
s.stopRecording;

// stop performance
~mGr.set(\gate, 0);

s.quit;
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reception
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