Triggers generate grains from a buffer. Each grain has a Hanning envelope
(sin2(x) for x from 0 to π)and can be panned over multichannel output.
| numChannels |
The number of output channels. |
| trigger |
At each trigger, the following arguments are sampled and used as the arguments of a new grain. A trigger occurs when a signal changes from non-positive to a positive value. If the trigger is audio rate then the grains will start with sample accuracy. |
| bufnum |
The index of the buffer to use. It must be a one channel (mono) buffer. |
| rate |
1.0 is normal, 2.0 is one octave up, 0.5 is one octave down -1.0 is backward normal rate… etc. |
| centerPos |
The position in the buffer in seconds at which the grain envelope will reach maximum amplitude. |
| dur |
Duration of the grain in seconds. |
| pan |
determines where to pan the output.
|
| amp |
Amplitude of the grain. |
| interp |
1, 2, or 4. Determines whether the grain uses (1) no interpolation, (2) linear interpolation, or (4) cubic interpolation. |
s.boot;b = Buffer.read(s, Platform.resourceDir +/+ "sounds/a11wlk01.wav");({ var trate, dur, rate; trate = MouseY.kr(2,200,1); dur = 4 / trate; rate = Dseq([10, 1, 1, 0.5, 0.5, 0.2, 0.1], inf); TGrains.ar(2, Impulse.ar(trate), b, rate, MouseX.kr(0,BufDur.kr(b)), dur, Dseq([-1, 1], inf), 0.1, 2);}.scope(zoom: 4);)({ var trate, dur, clk, pos, pan; trate = MouseY.kr(8,120,1); dur = 12 / trate; clk = Impulse.kr(trate); pos = MouseX.kr(0,BufDur.kr(b)) + TRand.kr(0, 0.01, clk); pan = WhiteNoise.kr(0.6); TGrains.ar(2, clk, b, 1, pos, dur, pan, 0.1);}.scope(zoom: 4);)// 4 channels({ var trate, dur, clk, pos, pan; trate = MouseY.kr(8,120,1); dur = 12 / trate; clk = Impulse.kr(trate); pos = MouseX.kr(0,BufDur.kr(b)) + TRand.kr(0, 0.01, clk); pan = WhiteNoise.kr(0.6); TGrains.ar(4, clk, b, 1, pos, dur, pan, 0.1);}.scope(4, zoom: 4);)({ var trate, dur, clk, pos, pan; trate = MouseY.kr(8,120,1); dur = 4 / trate; clk = Dust.kr(trate); pos = MouseX.kr(0,BufDur.kr(b)) + TRand.kr(0, 0.01, clk); pan = WhiteNoise.kr(0.6); TGrains.ar(2, clk, b, 1, pos, dur, pan, 0.1);}.scope(zoom: 4);)({ var trate, dur, clk, pos, pan; trate = LinExp.kr(LFTri.kr(MouseY.kr(0.1,2,1)),-1,1,8,120); dur = 12 / trate; clk = Impulse.ar(trate); pos = MouseX.kr(0,BufDur.kr(b)); pan = WhiteNoise.kr(0.6); TGrains.ar(2, clk, b, 1, pos, dur, pan, 0.1);}.scope(zoom: 4);)({ var trate, dur, clk, pos, pan; trate = 12; dur = MouseY.kr(0.2,24,1) / trate; clk = Impulse.kr(trate); pos = MouseX.kr(0,BufDur.kr(b)) + TRand.kr(0, 0.01, clk); pan = WhiteNoise.kr(0.6); TGrains.ar(2, clk, b, 1, pos, dur, pan, 0.1);}.scope(zoom: 4);)({ var trate, dur, clk, pos, pan; trate = 100; dur = 8 / trate; clk = Impulse.kr(trate); pos = Integrator.kr(BrownNoise.kr(0.001)); pan = WhiteNoise.kr(0.6); TGrains.ar(2, clk, b, 1, pos, dur, pan, 0.1);}.scope(zoom: 4);)({ var trate, dur, clk, pos, pan; trate = MouseY.kr(1,400,1); dur = 8 / trate; clk = Impulse.kr(trate); pos = MouseX.kr(0,BufDur.kr(b)); pan = WhiteNoise.kr(0.8); TGrains.ar(2, clk, b, 2 ** WhiteNoise.kr(2), pos, dur, pan, 0.1);}.scope(zoom: 4);)({ var trate, dur; trate = MouseY.kr(2,120,1); dur = 1.2 / trate; TGrains.ar(2, Impulse.ar(trate), b, (1.2 ** WhiteNoise.kr(3).round(1)), MouseX.kr(0,BufDur.kr(b)), dur, WhiteNoise.kr(0.6), 0.1);}.scope(zoom: 4);)// demand ugens as inputs({ var trate, dur, z, d; trate = MouseX.kr(1, 100, 1); d = { Dwhite(0.1, 0.2, 1) }; z = { Drand([Dgeom(0.1, 1 + d.value, Diwhite(20, 40)), Dgeom(1, 1 - d.value, Diwhite(20, 40))]) }; TGrains.ar(2, Impulse.ar(trate), bufnum: 10, rate: Dseq([1, 1, z.value, 0.5, 0.5, 0.2, 0.1, 0.1, 0.1, 0.1], inf) * 2 + 1, centerPos: Dseq(z.dup(8), inf), dur: Dseq([1, d.value, 1, z.value, 0.5, 0.5, 0.1, z.value] * 2, inf) / trate, pan: Dseq([1, 1, 1, 0.5, 0.2, 0.1, 0, 0, 0], inf) * 2 - 1, amp: Dseq([1, 0, z.value, 0, 2, 1.0, 1, 0.1, 0.1], inf) );}.scope(zoom: 4);)b.free