«Waveshaping Synthesis GUI Demo 2» by Bruno Ruviaro

on 08 Sep'13 23:01 in guisynthesis techniqueswaveshaping

Graphical interface for experimenting with waveshape synthesis.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
// ************************************
// Waveshaping Synthesis (GUI)
// Patch 2 - Waveshaping Demo
// Bruno Ruviaro, 2013-08-14
// ************************************

/*

How to start:
Select all (ctrl + A), then evaluate (ctrl + period).

SINE WAVE INPUT:
Amplitude of input is a key parameter of waveshaping synthesis.
Higher amplitudes, more distortion of original shape.
Lower amplitudes, less distortion of original shape.

TRANSFER FUNCTION:
Choose the desired amount (amplitude) for each partial, between 0-1.

OUTPUT (examples):
Choose between continuous tone, two examples of short notes, and one pattern example (Pbind).
*/

s.waitForBoot({

	/////////////////
	// Variables
	/////////////////

	var updateSineView, pBindExample, player, continuous, continuousButton, applyChangesButton, distortionBus, updateCheby, harmonics;

	distortionBus = Bus.control(s, 1); // input amp goes into this Bus
	harmonics = Array.newClear(10); // store values from Number Boxes

	/////////////////
	// Main Window
	/////////////////

	Window.closeAll;

	f = FlowView.new(
		bounds: 580@600,
		margin: 10@10, gap: 10@10)
	.background_(Color.white);

	f.onClose = {s.freeAll; player.stop};
	CmdPeriod.doOnce({Window.closeAll});

	////////////////////
	// Input Row (GUI)
	////////////////////

	// Sub-FlowView
	g = FlowView.new(f, 310@160, margin: 10@10)
	.background_(Color.red(0.8, 0.6));

	// Label: Input (sine wave)
	StaticText.new(g, 150@30)
	.string_("INPUT (sine wave)")
	.align_(\top)
	.font_(Font("Verdana", 14, true));

	g.startRow;

	// EZNumber for amplitude
	o = EZNumber.new(
		parent: g,
		bounds: Rect(0, 0, 188, 80),
		label: " ",
		controlSpec: ControlSpec(0.0, 1.0, 'lin', 0.01),
		action: {arg box;
			updateSineView.value(box.value);
			distortionBus.value = box.value;
		},
		numberWidth: 90,
		initVal: 0.5)
	// unitWidth: 0)
	.font_(Font("Verdana", 30))
	.numberView.align_(\center);

	// Init distortionBus (corresponds to input amplitude box)
	distortionBus.value = 0.5;

	g.startRow;

	// Simple label for number box
	StaticText.new(g, g.bounds.width-20@20)
	.string_("amplitude")
	.align_(\center)
	.font_(Font("Verdana", 14));

	// Plotter for Sine Wave (Input GUI)
	x = CompositeView.new(f, Rect(0, 0, 240, 160));
	a = Plotter.new("Input", parent: x)
	.value_(Signal.sineFill(1000, [1]) * 0.5)
	.setProperties(
		\backgroundColor, Color.red(0.8, 0.6));
	a.minval = -1; a.maxval = 1;
	a.refresh;

	updateSineView = {arg amp;
		a.value = Signal.sineFill(1000, [1]) * amp;
		a.minval = -1;
		a.maxval = 1;
		a.refresh;
	};

	////////////////////////////////
	// Transfer Function Row (GUI)
	////////////////////////////////

	// Sub-FlowView
	h = FlowView.new(f, 560@150, margin: 10@10)
	.background_(Color.yellow(0.9, 0.5));

	// Label Chebyshev
	StaticText.new(h, 280@30)
	.string_("TRANSFER FUNCTION (Chebyshev)")
	.align_(\top)
	// .background_(Color.red)
	.font_(Font("Verdana", 14, true));

	h.startRow;

	// Array of number boxes
	c = Array.fill(10, {arg i;
		EZNumber.new(
			parent: h,
			bounds: 50@60,
			label: (i+1).asString ++ "f",
			controlSpec: ControlSpec(0, 1, 'lin', 0.1),
			action: {arg thisBox;
				harmonics = c.collect({arg item; item.value});
				applyChangesButton.states = [["apply changes", Color.red]];
				thisBox.setColors(numNormalColor: Color.red);
			},
			initVal: 1.0.rand.round(0.1),
			layout: 'line2')
		.font_(Font("Verdana", 18))
		.setColors()
		.numberView.align_(\center);
	});

	// At start up
	harmonics = c.collect({arg item; item.value});

	// Apply changes to Chebyshev function
	applyChangesButton = Button.new(
		parent: CompositeView(h, 580@40)/*.background_(Color.red)*/,
		bounds: Rect(0, 5, 535, 27))
	.states_([["apply changes", Color.grey(0.8)]])
	.action_({arg thisButton;
		applyChangesButton.states = [["apply changes", Color.gray(0.8)]];
		c.do({arg item; item.normalColor_(Color.black)});
		updateCheby.value(harmonics);
		// if continuous note is running, stop it and play a new one
		if(continuousButton.value==1,
					{
						continuous.release;
						continuous = Synth("shaper", [\transFunc, b, \att, 1, \dist, distortionBus.asMap]);},
					{/*do nothing*/});


			});

	////////////////////////////////
	// Playback Examples Row (GUI)
	////////////////////////////////

	i = FlowView.new(f, 300@250, margin: 10@10, gap: 15@15)
	.background_(Color.green(0.4, 0.5));

	// CompositeView for Stethoscope
	y = CompositeView.new(f, Rect(0, 0, 250, 250));
	// .background_(Color.yellow(0.5));

	// Label: Input (sine wave)
	StaticText.new(i, 160@30)
	.string_("OUTPUT (examples)")
	.align_(\top)
	.font_(Font("Verdana", 14, true));

	// Scope
	Stethoscope.new(s, view: y);

	// Scope Label (and hiding space for scope options)
	k = CompositeView.new(y, Rect(2, 0, 250, 25))
	.background_(Color.white);

	// Label: Input (sine wave)
	StaticText.new(k , 230@30)
	.string_("output waveform")
	.align_(\top)
	.font_(Font("Verdana", 14, true));

	i.startRow;

	// Buttons
	continuousButton = Button.new(i, 280@50)
	.states_([["Continuous"], ["Continuous", Color.white, Color.black]])
	.action_({arg button;
		if(button.value==1,
			{continuous = Synth("shaper", [\transFunc, b, \att, 1, \dist, distortionBus.asMap])},
			{continuous.release});
	});

	Button.new(i, 132@50)
	.states_([["Short Note 1"]])
	.action_({
		// Choose duration
		var shortNoteDur = rrand(0.8, 4);
		// Play note
		{var freq = rrand(100, 300);
			LeakDC.ar(Shaper.ar(
				bufnum: b,
				in: Splay.ar(
					SinOsc.ar(
						freq: [freq, freq*1.25, freq*1.4],
						mul: EnvGen.kr(Env.perc(0.01, shortNoteDur), doneAction: 2))
		)))}.play;
		// Display amplitude change in EZNumber box
		{
			100.do({arg i;
				{o.valueAction = i.linlin(0, 99, 1, 0).round(0.01)}.defer;
				(shortNoteDur/100).wait;
			})
		}.fork;
		// button.value.postln;
	});

		Button.new(i, 132@50)
	.states_([["Short Note 2"]])
	.action_({
		// Choose duration
		var shortNoteDur = rrand(0.5, 2);
		// Play note
		{var freq = rrand(60, 400);
			LeakDC.ar(Shaper.ar(
				bufnum: b,
				in: Splay.ar(
					SinOsc.ar(
						freq: [freq, freq*2, freq*4],
						mul: EnvGen.kr(Env.perc(0.01, shortNoteDur), doneAction: 2))
		)))}.play;
		// Display amplitude change in EZNumber box
		{
			100.do({arg i;
				{o.valueAction = i.linlin(0, 99, 1, 0).round(0.01)}.defer;
				(shortNoteDur/100).wait;
			})
		}.fork;
		// button.value.postln;
	});

	Button.new(i, 280@50)
	.states_([["Pbind"], ["Pbind", Color.white, Color.black]])
	.action_({arg button;
		if(button.value==1, {player = pBindExample.play}, {player.stop; player = nil});

	});

	////////////////////////////////
	// AUDIO ///////////////////////
	////////////////////////////////


	SynthDef("shaper", {
		arg freq = 440, gate = 1, amp = 0.6, dist = 0.4, transFunc, att = 0.1, sus = 1, rel = 1;
		var snd, env;
		env = EnvGen.kr(Env.asr(att, sus, rel), gate, doneAction: 2);
		snd = Shaper.ar(transFunc, SinOsc.ar(freq, 0, Lag.kr(dist)));
		snd = LeakDC.ar(snd * env * amp);
		Out.ar(0, snd!2);
	}).add;

	// Define function to update Cheby buffer
	updateCheby = {arg array;
		// Buffer.freeAll;
		b = Buffer.alloc(s, 1024, 1, { |buf| buf.chebyMsg(array) });
		"end".postln;
	};

	// Create first with start up values
	updateCheby.value(harmonics);

	pBindExample = Pbind(
		\instrument, "shaper",
		\scale, Scale.phrygian,
		\degree, Pseq([
			Ptuple([
				Pseq([5, 6, 5, 6, 8, 7, 6, 7], 4),
				Pseq([3, 4, 3, 5, 5, 5, 5, 4], 4),
				Pseq([0, 0, 0, 2, 3, 4, 3, 1], 4)
			], 1),
			Ptuple([
				Pseq([7, 8, 9, 10, 6, 7, 8, 9, 8, 8, 7, 6, 5, 4]),
				Pseq([3, 5, 4, 4, 3, 4, 5, 4, 3, 2, 3, 4, 5, 7]),
				Pseq([-7, -8, -8, -5, -4, -6, -8, -8, -10, -9, -11, -10, -9, -9])
			])
		], inf),
		\dur, Pseq([
			Pseq([0.15, 0.15, 0.25, 0.25, 0.15, 0.15, 0.25, 0.2], 4),
			Prand([0.3, 0.43, 0.383], 14)
		], inf),
		\legato, Pseq([Pseq([0.1], 32), Pseq([0.5], 14)], inf),
		\amp, 0.5,
		\dist, Pseq([0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8], inf),
		\transFunc, Pfunc({b});
	).collect({arg event; {o.valueAction_(event[\dist])}.defer; event});


}); // end of block
descendants
«usegoxuk» by anonymous (private)
full graph
raw 8354 chars (focus & ctrl+a+c to copy)
reception
comments