/usr/share/SuperCollider/HelpSource/Classes/Pbus.schelp is in supercollider-common 1:3.8.0~repack-2.
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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 | class:: Pbus
summary:: isolate a pattern by restricting it to a bus
related:: Classes/Pfx, Classes/Pfxb, Classes/Pgroup
categories:: Streams-Patterns-Events>Patterns>Server Control
description::
Starts a new group and plays the pattern in this group, on a private bus. The group and the bus is released when the stream has ended.
This is useful in order to isolate a link::Classes/Pfx::.
ClassMethods::
method::new
argument::pattern
argument::dur
delay to allow inner patterns to decay.
argument::fadeTime
fading out the inner pattern after dur over this time.
argument::numChannels
number of channels of the bus (should match the synthdef).
argument::rate
bus rate.
Examples::
code::
(
SynthDef(\echo, { arg out=0, maxdtime=0.2, dtime=0.2, decay=2, gate=1;
var env, in;
env = Linen.kr(gate, 0.05, 1, 0.1, 2);
in = In.ar(out, 2);
XOut.ar(out, env, CombL.ar(in * env, maxdtime, dtime, decay, 1, in));
}, [\ir, \ir, 0.1, 0.1, 0]).add;
SynthDef(\distort, { arg out=0, pregain=40, amp=0.2, gate=1;
var env;
env = Linen.kr(gate, 0.05, 1, 0.1, 2);
XOut.ar(out, env, (In.ar(out, 2) * pregain).distort * amp);
}, [\ir, 0.1, 0.1, 0]).add;
SynthDef(\wah, { arg out=0, gate=1;
var env, in;
env = Linen.kr(gate, 0.05, 1, 0.4, 2);
in = In.ar(out, 2);
XOut.ar(out, env, RLPF.ar(in, LinExp.kr(LFNoise1.kr(0.3), -1, 1, 200, 8000), 0.1).softclip * 0.8);
}, [\ir, 0]).add;
)
// watch the node structure as it changes
s.waitForBoot({ s.plotTree });
(
var p, q, r, o;
p = Pbind(\degree, Prand((0..7),12), \dur, 0.3, \legato, 0.2);
q = Pfx(p, \echo, \dtime, 0.2, \decay, 3);
r = Pfx(q, \distort, \pregain, 20, \amp, 0.25);
o = Pfx(r, \wah);
Ppar(
[p, q, r, o].collect(Pbus(_)); // play each in a different bus.
).play;
)
// compare to playing them together on one bus.
(
var p, q, r, o;
p = Pbind(\degree, Prand((0..7),12), \dur, 0.3, \legato, 0.2);
q = Pfx(p, \echo, \dtime, 0.2, \decay, 3);
r = Pfx(q, \distort, \pregain, 20, \amp, 0.25);
o = Pfx(r, \wah);
Ppar([p, q, r, o]).play;
)
::
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