Merge pull request #506 from andrewcsmith/patch-2
[supercollider.git] / examples / demonstrations / SC2-examples_1.scd
blob354fa4be2209e1fcc354c35c754d7e9201b7c6e7
1 //////////////////////////////////////////////////////////////////////////
2  
4 // analog bubbles
6         f = LFSaw.kr(0.4, 0, 24, LFSaw.kr([8,7.23], 0, 3, 80)).midicps; // glissando function
7         CombN.ar(SinOsc.ar(f, 0, 0.04), 0.2, 0.2, 4) // echoing sine wave
8 }.play)
10 //////////////////////////////////////////////////////////////////////////
13 // LFO modulation of Pulse waves and resonant filters
14 play({ 
15         CombL.ar(
16                 RLPF.ar(LFPulse.ar(FSinOsc.kr(0.05,0,80,160),0,0.4,0.05), 
17                    FSinOsc.kr([0.6,0.7],0,3600,4000), 0.2),
18                 0.3, [0.2,0.25], 2)
19 }))
21 //////////////////////////////////////////////////////////////////////////
24 // moto rev
26         RLPF.ar(LFPulse.ar(SinOsc.kr(0.2, 0, 10, 21), 0.1), 100, 0.1).clip2(0.4) 
27 }.play)
29 //////////////////////////////////////////////////////////////////////////
32 // scratchy
33 play({  RHPF.ar(BrownNoise.ar([0.5,0.5], -0.49).max(0) * 20, 5000, 1)  })
36 //////////////////////////////////////////////////////////////////////////
39 // sprinkler
40 play({
41         BPZ2.ar(WhiteNoise.ar(LFPulse.kr(LFPulse.kr(0.09, 0, 0.16, 10, 7), 0, 0.25, 0.1)))
42 }))
45 play({
46         BPZ2.ar(WhiteNoise.ar(LFPulse.kr(MouseX.kr(0.2,50), 0, 0.25, 0.1)))
47 }))
49 //////////////////////////////////////////////////////////////////////////
52 // harmonic swimming
53 play({
54         var f, p, z, offset;
55         f = 50;         // fundamental frequency
56         p = 20;         // number of partials per channel
57         z = 0.0;                // start of oscil daisy chain
58         offset = Line.kr(0, -0.02, 60); // causes sound to separate and fade
59         p.do({ arg i;
60                 z = FSinOsc.ar(
61                                 f * (i+1),              // freq of partial
62                                 0,
63                                 max(0,                  // clip negative amplitudes to zero
64                                         LFNoise1.kr(
65                                                 6 + [4.0.rand2, 4.0.rand2],     // amplitude rate 
66                                                 0.02,                                   // amplitude scale
67                                                 offset                                  // amplitude offset
68                                         )
69                                 ), 
70                                 z
71                 )
72         });
73         z
74 }))
76 //////////////////////////////////////////////////////////////////////////
79 // harmonic tumbling
80 play({
81         var f, p, z, trig;
82         f = 80; // fundamental frequency
83         p = 10; // number of partials per channel
84         z = 0.0;        // start of oscil daisy chain
85         trig = XLine.kr([10,10], 0.1, 60);      // trigger probability decreases over time
86         p.do({ arg i;
87                 z = FSinOsc.ar(
88                                 f * (i+1),              // freq of partial
89                                 0,
90                                 Decay2.kr(
91                                         Dust.kr(        
92                                                 trig,           // trigger rate
93                                                 0.02            // trigger amplitude
94                                         ), 
95                                         0.005,  // grain attack time
96                                         0.5.rand        // grain decay time
97                                 ),
98                                 z
99                 )
100         });
101         z
104 //////////////////////////////////////////////////////////////////////////
108 // Klank - bank of resonators excited by impulses
109 var n, p, z;
110 n = 5;  // number of simultaneous instruments
111 p = 15; // number of partials per instrument
112         z = `[  // filter bank specification :
113                                 Array.fill(p, { 80 + 10000.0.linrand} ),        // frequencies
114                                 Array.fill(p, { 1.0.rand2 }),                   // amplitudes
115                                 Array.fill(p, { 0.2 + 8.0.rand } )              // ring times
116                         ];
117                 Pan2.ar(
118                         Klank.ar(z, Dust.ar(0.7, 0.04)),
119                         1.0.rand2
120                 )
121 }.play;
124 //////////////////////////////////////////////////////////////////////////
128 // Klank - excited by noise bursts
129 var n, p;
130 var exciter, spec;
131 n = 5;  // number of simultaneous instruments
132 p = 8;  // number of partials per instrument
133                 exciter = Decay.ar(Dust.ar(0.6, 0.001), 3.1, WhiteNoise.ar);
134                 spec = Array.fill(2, {
135                         `[
136                                 Array.fill(p, { 80 + 10000.0.linrand} ),
137                                 nil,
138                                 Array.fill(p, { 0.2 + 4.0.rand } )
139                         ]
140                 });
141                 Klank.ar(spec, exciter)
142 }.play;
145 //////////////////////////////////////////////////////////////////////////
148 // what was I thinking?
150         z = RLPF.ar(
151                 Pulse.ar(
152                         max( SinOsc.kr(4, 0, 1, 80),
153                                 Decay.ar(LFPulse.ar(0.1, 0, 0.05, Impulse.ar(8, 0, 500)), 2)
154                         ), 
155                         LFNoise1.kr(0.157, 0.4, 0.5), 
156                         0.04),
157                 LFNoise1.kr(0.2, 2000, 2400),
158                 0.2);
159         y = z * 0.6;
160         z +  [
161                           CombL.ar(y, 0.06, LFNoise1.kr(0.3.rand, 0.025, 0.035), 1) 
162                         + CombL.ar(y, 0.06, LFNoise1.kr(0.3.rand, 0.025, 0.035), 1)
163                 ,
164                           CombL.ar(y, 0.06, LFNoise1.kr(0.3.rand, 0.025, 0.035), 1)
165                         + CombL.ar(y, 0.06, LFNoise1.kr(0.3.rand, 0.025, 0.035), 1)
166                 ]
167 }.play;
170 //////////////////////////////////////////////////////////////////////////
173 // police state
174 var n;
175 n = 4;  // number of sirens
176 play({
177         CombL.ar(
178                 Mix.arFill(n, {
179                         Pan2.ar(
180                                 SinOsc.ar(
181                                         SinOsc.kr(0.1.rand + 0.02, 2pi.rand, 600.rand, 1000 + 300.rand2), 
182                                         0, 
183                                         LFNoise2.ar(100 + 20.0.rand2, 0.1)
184                                 ),
185                                 1.0.rand2
186                         )
187                 }) 
188                 + LFNoise2.ar(LFNoise2.kr([0.4,0.4], 90, 620), LFNoise2.kr([0.3,0.3], 0.15, 0.18)), 
189                 0.3, 0.3, 3)
192 //////////////////////////////////////////////////////////////////////////
196 // cymbalism
197 var p;
198                 var z, f1, f2;
199 p = 15; // number of partials per channel per 'cymbal'.
200                 f1 = 500 + 2000.0.rand;
201                 f2 = 8000.0.rand;
202                 z = Array.fill(2, {
203                         `[      // sine oscil bank specification :
204                                 y = Array.fill(p, { f1 + f2.rand} ), // frequencies
205                                 nil,                                                    // amplitudes default to 1.0
206                                 Array.fill(p, { 1.0 + 4.0.rand })       // ring times
207                         ]
208                 });
209                 Klank.ar(z, Decay.ar(Impulse.ar(3.0.rand + 0.5), 0.004, WhiteNoise.ar(0.03)));
210 }.play;
213 //////////////////////////////////////////////////////////////////////////
216 // synthetic piano
217 var n;
218 n = 6;  // number of keys playing
219 play({
220         Mix.ar(Array.fill(n, {  // mix an array of notes
221                 var delayTime, pitch, detune, strike, hammerEnv, hammer;
222         
223                 // calculate delay based on a random note
224                 pitch = (36 + 54.rand); 
225                 strike = Impulse.ar(0.1+0.4.rand, 2pi.rand, 0.1); // random period for each key
226                 hammerEnv = Decay2.ar(strike, 0.008, 0.04); // excitation envelope
227                 Pan2.ar(
228                         // array of 3 strings per note
229                         Mix.ar(Array.fill(3, { arg i;
230                                 // detune strings, calculate delay time :
231                                 detune = #[-0.05, 0, 0.04].at(i);
232                                 delayTime = 1 / (pitch + detune).midicps;
233                                 // each string gets own exciter :
234                                 hammer = LFNoise2.ar(3000, hammerEnv); // 3000 Hz was chosen by ear..
235                                 CombL.ar(hammer,                // used as a string resonator
236                                         delayTime,              // max delay time
237                                         delayTime,                      // actual delay time
238                                         6)                              // decay time of string
239                         })),
240                         (pitch - 36)/27 - 1 // pan position: lo notes left, hi notes right
241                 )
242         }))
246 //////////////////////////////////////////////////////////////////////////
249 var a, c, d, s, z, y;
250 // reverberated sine percussion
251 d = 6; // number of percolators
252 c = 5; // number of comb delays
253 a = 4; // number of allpass delays
255 play({
256                 // sine percolation sound :
257         s = Mix.ar(Array.fill(d, { Resonz.ar(Dust.ar(2/d, 50), 200 + 3000.0.rand, 0.003)}) );
258         
259                 // reverb predelay time :
260         z = DelayN.ar(s, 0.048);
261         
262                 // 7 length modulated comb delays in parallel :
263         y = Mix.ar(CombL.ar(z, 0.1, LFNoise1.kr(Array.fill(c,{0.1.rand}), 0.04, 0.05), 15)); 
264         
265                 // chain of 4 allpass delays on each of two channels (8 total) :
266         a.do({ y = AllpassN.ar(y, 0.050, [0.050.rand,0.050.rand], 1) });
267         
268                 // add original sound to reverb and play it :
269         s+(0.2*y)
272 //////////////////////////////////////////////////////////////////////////
275 // reverberated noise bursts
276 var a, c, d, s, z, y;
277 play({
278                 // pink noise percussion sound :
279         s = Decay.ar(Dust.ar(0.6, 0.2), 0.15, PinkNoise.ar);
280         
281                 // reverb predelay time :
282         z = DelayN.ar(s, 0.048);
283         
284                 // 6 modulated comb delays in parallel :
285         y = Mix.ar(CombL.ar(z, 0.1, LFNoise1.kr(Array.fill(6,{0.1.rand}), 0.04, 0.05), 15)); 
286         
287                 // chain of 4 allpass delays on each of two channels (8 total) :
288         4.do({ y = AllpassN.ar(y, 0.050, [0.050.rand,0.050.rand], 1) });
289         
290                 // add original sound to reverb and play it :
291         s+y
294 //////////////////////////////////////////////////////////////////////////
297         // sample and hold liquidities
298         // mouse x controls clock rate, mouse y controls center frequency
300         var clockRate, clockTime, clock, centerFreq, freq, panPos, patch;
302         clockRate = MouseX.kr(1, 200, 1);
303         clockTime = clockRate.reciprocal;
304         clock = Impulse.kr(clockRate, 0.4);
306         centerFreq = MouseY.kr(100, 8000, 1);
307         freq = Latch.kr(WhiteNoise.kr(centerFreq * 0.5, centerFreq), clock);
308         panPos = Latch.kr(WhiteNoise.kr, clock);
309         patch = CombN.ar(
310                         Pan2.ar( 
311                                 SinOsc.ar(
312                                         freq, 
313                                         0, 
314                                         Decay2.kr(clock, 0.1 * clockTime, 0.9 * clockTime)
315                                 ), 
316                                 panPos
317                         ),
318                         0.3, 0.3, 2
319                 );
320         patch
321 }.play;
324 //////////////////////////////////////////////////////////////////////////
327 // sweepy noise - mouse controls LFO
329         var lfoDepth, lfoRate, freq, filtered;
330         lfoDepth = MouseY.kr(200, 8000, 'exponential');
331         lfoRate = MouseX.kr(4, 60, 'exponential');
332         freq = LFSaw.kr(lfoRate, 0, lfoDepth, lfoDepth * 1.2);
333         filtered = RLPF.ar(WhiteNoise.ar([0.03,0.03]), freq, 0.1);
334         CombN.ar(filtered, 0.3, 0.3, 2, 1, filtered);
335 }.play
338 //////////////////////////////////////////////////////////////////////////
342                 var a, a0, a1, b, c, pan;
343                 a0 = 200.0.rand + 40;
344                 a1 = a0 + 1.0.rand2;
345                 a = [a0, a1];
346                 b = 2000.0.rand;
347                 c = [a0 + 1.0.rand2, a1 + 1.0.rand2];
348                 SinOsc.ar(SinOsc.ar(a, 0, 1.0.rand * b, b), 0, SinOsc.kr(c, 0, 0.05, 0.05))
349 }.play;
352 //////////////////////////////////////////////////////////////////////////
356 // aleatoric quartet
357 // mouse x controls density
359 play({
360         var amp, density, dmul, dadd, signal;
361         amp = 0.07;
362         density = MouseX.kr(0.01,1); // mouse determines density of excitation
363         
364         // calculate multiply and add for excitation probability
365         dmul = density.reciprocal * 0.5 * amp;
366         dadd = dmul.neg + amp;
367         
368         signal = Mix.ar(        // mix an array of 4 instruments
369                 Array.fill(4, {
370                         var excitation, freq;
371                         
372                         excitation = PinkNoise.ar(
373                                 // if amplitude is below zero it is clipped
374                                 // density determines the probability of being above zero
375                                 max(0, LFNoise1.kr(8, dmul, dadd)) 
376                         );
377                         
378                         freq = Lag.kr(                  // lag the pitch so it glissandos between pitches
379                                 LFNoise0.kr(                            // use low freq step noise as a pitch control
380                                         [1, 0.5, 0.25].choose,  // choose a frequency of pitch change
381                                         7,                                      // +/- 7 semitones
382                                         66 + 30.rand2                   // random center note
383                                 ).round(1),             // round to nearest semitone
384                                 0.2                             // gliss time
385                         ).midicps;                      // convert to hertz
386                         
387                         Pan2.ar(        // pan each intrument
388                                 CombL.ar(excitation, 0.02, freq.reciprocal, 3), // comb delay simulates string
389                                 1.0.rand2               // random pan position
390                         );
391         }));
392         
393         // add some reverb via allpass delays
394         5.do({ signal = AllpassN.ar(signal, 0.05, [0.05.rand,0.05.rand], 1) });
395         LeakDC.ar( signal, 0.995);              // delays build up a lot of DC, so leak it out here.
399 ////////////////////////////////////////////////////////////////////////////////////////////////
403                 var mix, out, n=8;
404                 r = LFNoise0.kr(rrand(0.2,1.0), 1,1).squared * MouseX.kr;
405                 mix = Klank.ar(
406                         `[
407                                 Array.fill(n, { exprand(1.0,20.0) }),
408                                 nil,
409                                 Array.fill(n, { 0.2.rand })
410                         ],
411                         Blip.ar(r, [rrand(2,5),rrand(2,5)], 0.1)
412                 ).fold2(0.2).cubed * 12;
413                 mix = Mix.arFill(3, { CombL.ar(mix, 0.1, 0.03.linrand, 4.0.linrand) });
414                 out = mix.distort * 0.5;
415                 6.do({ out = AllpassN.ar(out, 0.05, [0.05.rand, 0.05.rand], 3) });
416                 out = LeakDC.ar(out);
417 }.play
420 ////////////////////////////////////////////////////////////////////////////////////////////////
424         var root, scale;
426         // struck string
427         var trig, p, exc, x, freq, s;
428         root = rrand(3,6);
429         scale = #[0,2,4,5,7,9,11];
431         freq = (scale.choose + #[24,36,48,60,72,84].choose + root).midicps;
432         exc = BrownNoise.ar(
433                 Decay2.kr(
434                         Impulse.kr(#[0.125,0.25,0.375,0.5,0.75,1,1.5,2,3,4].choose,0,[0.05,0.05]
435                 ), 0.005, 0.05));
436         s = (Klank.ar(`[
437                         Array.series(16, freq, freq),
438                         Array.geom(16,1,rrand(0.7,0.999)),
439                         Array.fill(16, {rrand(0.1,2.5)})
440                 ], exc) * 0.1).softclip;
441 }.play
444 ///////////////////////////////////////////////////////////////////////////////////////////////
448         var root, scale, s;
449                         // wind chords
450         var trig, p, n, exc, x, base, range;
451                 //root = rrand(3,6);
452                 root = 5;
453                 scale = #[0,2,4,5,7,9,11];
454                 n = 5;
455                 exc = BrownNoise.ar([0.007,0.007]) * max(0, LFNoise1.kr(exprand(0.125,0.5), 1.25, -0.25));
456                 s = (Klank.ar(`[Array.fill(n, {(scale.choose + #[36,48,60,72,84].choose + root).midicps}),nil,Array.fill(n, {rrand(0.1,2.0)})], exc) * 0.1).softclip;
457 }.play;
460 ///////////////////////////////////////////////////////////////////////////////////////////////
465                         // wind metals
466                         var trig, s, p, n, exc, x, base, range;
467                         n = 6;
468                         base = exprand(60,4000);
469                         range = rrand(500.0,8000.0);
470                         exc = BrownNoise.ar([0.007,0.007]) * max(0, LFNoise1.kr(exprand(0.125,0.5), 0.75, 0.25));
471                         s = (Klank.ar(`[Array.fill(n, {linrand(range)+base}),nil,Array.fill(n, {rrand(0.1,2.0)})], exc) * 0.1).softclip;
472 }.play;
475 ///////////////////////////////////////////////////////////////////////////////////////////////
479 var root, scale;
480                         // bowed string
481                 var trig, p, s, exc, x, freq;
482                 //root = rrand(3,6);
483                 root = 5;
484                 scale = #[0,2,4,5,7,9,11];
485                         freq = (scale.choose + #[24,36,48,60,72,84].choose + root).midicps;
486                         exc = BrownNoise.ar([0.007,0.007]) * max(0, LFNoise1.kr(exprand(0.125,0.5), 0.6, 0.4));
487                         s = (Klank.ar(`[
488                                         Array.series(12, freq, freq),
489                                         Array.geom(12,1,rrand(0.7,0.9)),
490                                         Array.fill(12, {rrand(1.0,3.0)})
491                                 ], exc) * 0.1).softclip;
492 }.play;
495 ///////////////////////////////////////////////////////////////////////////////////////////////
499         var root, scale, s;
500         // whistle
501         var trig, p, exc, x, freq;
502                 root = 5;
503                 scale = #[0,2,4,5,7,9,11];
504                         freq = (scale.choose + #[84,96].choose + root).midicps;
505                         exc = BrownNoise.ar([0.05,0.05]) * max(0, SinOsc.kr(exprand(0.125,0.5), 2pi.rand));
506                         s = (Klank.ar(`[
507                                         Array[freq],
508                                         nil,
509                                         Array[0.3]
510                                 ], exc) * 0.1).softclip;
511 }.play
514 ///////////////////////////////////////////////////////////////////////////////////////////////
519         // metallic
520         var trig, p, exc, x, s;
521         exc = BrownNoise.ar(Decay2.kr(Impulse.kr(#[0.125,0.25,0.375,0.5,0.75,1,1.5,2].choose,0,[0.04,0.04]), 0.005, 0.05));
522         s = (Klank.ar(`[Array.fill(16, {linrand(8000.0)+60}),nil,Array.fill(16, {rrand(0.1,2.0)})], exc) * 0.1).softclip;
523 }.play
526 ///////////////////////////////////////////////////////////////////////////////////////////////
530         var x, r, f;
531         x = Mix.fill(4, { 
532                 LFSaw.ar((LFPulse.kr(0.06,0,0.5,2,34 + {0.1.rand2}.dup)).midicps, 0, 0.01) 
533         });
534         r = MouseY.kr(0.1,0.7);
535         f = LinExp.kr(SinOsc.kr(0.07),-1,1,300,5000);
536         x = RLPF.ar(x, f, r).softclip;
537         x = RLPF.ar(x, f, r).softclip;
538 }.play;
543 Pan2.ar(
544         SinOsc.ar(rrand(24,108).midicps, 2pi.rand,
545                  
546                 Mix.ar(SinOsc.ar(exprand(0.3,8) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand], 0.1)).max(0)
547                 * Mix.ar(SinOsc.ar(exprand(6,24) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand], 0.1)).abs
548         ), 1.0.rand2);
549         
550 }.play;
556                 Pan2.ar(
557         HPZ1.ar(LFTri.ar(rrand(24,128).midicps, 2pi.rand,
558                  
559                 Mix.ar(SinOsc.ar(exprand(0.3,8) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand], 0.04)).max(0)
560                 * Mix.ar(SinOsc.ar(exprand(6,24) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand])).abs
561         )), 1.0.rand2); 
562 }.play;
568                 x = Pan2.ar(
569                 LPZ2.ar(LFPulse.ar(80 * rrand(1,32), 2pi.rand, 0.1,
570                          
571                         Mix.ar(SinOsc.ar(exprand(0.3,8) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand], 0.04)).max(0)
572                         * Mix.ar(SinOsc.ar(exprand(6,24) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand])).abs
573                 
574                 )), 1.0.rand2); 
575                 2.do({ x = AllpassN.ar(x, 0.05, [0.05.rand,0.05.rand], 3.0.rand, 2); });
576                 x
577         
578 }.play
584                 x = Pan2.ar(
585                 LPZ2.ar(LFPulse.ar(80 * (1 + 32.linrand), 2pi.rand, 0.1,
586                          
587                         Mix.ar(SinOsc.ar(0.125 * [2**rrand(0,6),2**rrand(0,6)], [2pi.rand,2pi.rand], 0.04)).max(0)
588                         * Mix.ar(SinOsc.ar(4 * [rrand(1,6),rrand(1,6)], [2pi.rand,2pi.rand])).abs
589                 
590                 )), 1.0.rand2); 
591                 2.do({ x = AllpassN.ar(x, 0.05, [0.05.rand,0.05.rand], 4.0.rand, 2); });
592                 x
593         
594         }.play;
600                 Pan2.ar(
601         BPZ2.ar(LFPulse.ar(120 * 100.rand, 2pi.rand, 0.5,
602                  
603                 Mix.ar(SinOsc.ar(exprand(0.3,8) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand], 0.04)).max(0)
604                 * Mix.ar(SinOsc.ar(exprand(6,24) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand])).abs
605         )), 1.0.rand2); 
606 }.play
612                 Pan2.ar(
613         Resonz.ar(LFPulse.ar(exprand(50,600), 2pi.rand, 0.5,
614                  
615                 Mix.ar(SinOsc.ar(exprand(0.3,8) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand], 0.1)).max(0)
616                 * Mix.ar(SinOsc.ar(exprand(6,24) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand])).abs
617         ), exprand(100,2000), 0.2), 1.0.rand2); 
618 }.play
624                 Pan2.ar(
625         RLPF.ar(LFPulse.ar(exprand(50,600), 2pi.rand, 0.5,
626                  
627                 Mix.ar(SinOsc.ar(exprand(0.3,8) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand], 0.1)).max(0)
628                 * Mix.ar(SinOsc.ar(exprand(6,24) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand])).abs
629         ), exprand(100,2000), 0.2), 1.0.rand2); 
630 }.play
633 {  SinOsc.ar(exprand(100,6000), 0, LFNoise2.ar(exprand(4,24),[0.07,0.07])) }.play;
638                 Pan2.ar(
639                 RLPF.ar(LFPulse.ar(exprand(50,600), 2pi.rand, 0.5,
640                          
641                         Mix.ar(SinOsc.ar(exprand(0.3,8) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand], 0.1)).max(0)
642                         * Mix.ar(SinOsc.ar(exprand(6,24) * [rrand(0.7,1.3),1], [2pi.rand,2pi.rand])).abs
643                 ), exprand(100,2000), 0.2), 1.0.rand2); 
644 }.play;
647 /////////////////////////////////////////////////////////////////////////////////
652                 var freq, x;
653                 freq = LFPulse.kr(20.0.rand, 0, 1.0.rand, 
654                         LFPulse.kr(4.0.rand, 0, 1.0.rand, 8000.rand, 2000.rand));
655                 freq = freq + LFPulse.kr(20.0.rand, 0, 1.0.rand, 
656                         LFPulse.kr(4.0.rand, 0, 1.0.rand, 8000.rand, 2000.rand));
657                 x = LFPulse.ar(freq+[0.5,0.5].rand2, 0, 0.5, 0.15, -0.05);
658                 AllpassN.ar(x, 0.05, [0.05,0.05].rand, 0.3);
659 }.play
664         var out, lfoDepth, lfoRate, freq, filtered;
665         lfoDepth = MouseY.kr(200, 8000, 1);
666         lfoRate = MouseX.kr(4, 60, 1);
667         freq = LFSaw.kr(lfoRate, 0, lfoDepth, lfoDepth * 1.2);
668         filtered = RLPF.ar({WhiteNoise.ar(0.03)}.dup, freq, 0.1);
669         out = CombN.ar(filtered, 0.3, 0.3, 2, 1, filtered);
670         out
671 }.play;
674 /////////////////////////////////////////////////////////////////////////////////////////////////////////////////
677 // adding many things to the top level spawn.
680         var exc, amp;
681         amp = LFPulse.kr(4,0,0.1,0.002);
682         exc = LPZ1.ar(GrayNoise.ar([amp,amp]));
683         Klank.ar(`[FloatArray.fill(4, { rrand(80.0,400.0) }), 
684                         nil, 
685                         FloatArray[1, 1, 1, 1]], exc);
686 }.play;
691         var exc, amp;
692         amp = LFPulse.kr(8,0,0.1,0.002);
693         exc = LPZ1.ar(GrayNoise.ar([amp,amp]));
694         Klank.ar(`[FloatArray.fill(4, { rrand(80.0,400.0) }), 
695                         nil, 
696                         FloatArray[1, 1, 1, 1]], exc).abs;
697 }.play;
702         CombN.ar(LPF.ar(LFNoise0.ar(MouseX.kr([300,2200])*[1,1.1],LFPulse.kr(1,0,0.3,0.1)), 800).abs, 0.2, [0.2,0.17], 5);
703 }.play;
708         var amp, my;
709         amp = LFPulse.kr(0.5,0,0.5);
710         my = MouseY.kr(400,3200);
711         Mix.arFill(8, {
712                 var x;
713                 x = Formlet.ar(Dust.ar(12,[0.05,0.05]) * amp, my * exprand(0.5,2.0), 0.005, 0.1);
714                 AllpassN.ar(x, 0.05,0.05.rand, 8);
715         });
716 }.play;