«Additive Synthesis Demo with QuNeo - Patch 3 (Risset Bell)» by Bruno Ruviaro

on 22 Sep'13 23:47 in bellrissetadditive synthesisquneo

QuNeo controller playing Risset Bells (additive synthesis demo).

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// ************************************
// Additive Synthesis Demo with QuNEO
// Patch 3 - Risset Bell
// Simple attack & decay
// ************************************

/*

Use QuNEO SCLOrk Preset #1.
This implements Risset's Bell. Each pad plays a transposition of the bell.
Long Slider controls duration (time it takes for bell to decay).
Vertical Sliders control ADSR envelope

*/

s.waitForBoot({

	var padsArray = Array.newClear(64);
	var duration = 4;
	var quneoChannel = 11;

	// MIDIIn.connectAll;

	MIDIdef.freeAll;

	MIDIdef.noteOn(
		key: \noteOn,
		func: {arg vel, note;
			var index = note - 36; // start from 0
				padsArray[index] = Synth("risset", [
				\freq, (note+24).midicps,
				\dur, duration])},
		noteNum: (36..99), // only pad notes (16 x 4 banks)
		chan: quneoChannel);

	// No need for noteOff responder, as bells are just attack-decay
	// Only available control is volume:

	MIDIdef.cc(
		key: \duration,
		func: {arg val, ccnum;
			duration = val.linlin(0, 127, 0.5, 10);
			("Duration is "++duration.round(0.1)++" seconds").postln},
		ccNum: 10, // Long Slider
		chan: quneoChannel);

	SynthDef(\risset, {|out = 0, pan = 0, freq = 400, amp = 0.1, dur = 2, gate = 1|
		var amps = #[1, 0.67, 1, 1.8, 2.67, 1.67, 1.46, 1.33, 1.33, 1, 1.33];
		var durs = #[1, 0.9, 0.65, 0.55, 0.325, 0.35, 0.25, 0.2, 0.15, 0.1, 0.075];
		var frqs = #[0.56, 0.56, 0.92, 0.92, 1.19, 1.7, 2, 2.74, 3, 3.76, 4.07];
		var dets = #[0, 1, 0, 1.7, 0, 0, 0, 0, 0, 0, 0];
		var doneActionEnv = EnvGen.ar(Env.linen(0, dur, 0), gate, doneAction: 2);
		var src = Mix.fill(11, {|i|
			var env = EnvGen.ar(Env.perc(0.005, dur*durs[i], amps[i], -4.5), gate);
			SinOsc.ar(freq*frqs[i] + dets[i], 0, amp*env);
		});
		src = src * doneActionEnv * 0.5; // make sure it releases node after the end.
		Out.ar(out, Pan2.ar(src, pan));
	}).add;

	FreqScope.new
});
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