Page 61 - Linux Inside τ. 8

Linux Inside 61
{ LFSaw.ar(LFSaw.kr(LFSaw.kr(0.2,0,8,10),0,
400,800),0,0.1) }.scope(1, zoom: 4);
{ LFSaw.ar(LFSaw.kr(0.2, 0, 400,800),0,0.1) }.scope(1,
zoom: 4);
{ LFSaw.ar(100,0,0.1) }.scope(1, zoom: 4);
{ LFSaw.ar(XLine.kr(100,15000,6),0,0.1) }.scope(1, zoom: 4);
{ VarSaw.ar(VarSaw.kr(VarSaw.kr(0.2,0,0.2,8,10),0,0.2,
400,800),0,0.2,0.1) }.scope(1, zoom: 4);
{ VarSaw.ar(VarSaw.kr(0.2, 0, 0.2, 400,800),0,0.2,0.1)
}.scope(1, zoom: 4);
{ VarSaw.ar(XLine.kr(100,15000,6),0,0.2,0.1) }.scope(1,
zoom: 4);
// pulse width modulation
{ LFPulse.ar(LFPulse.kr(LFPulse.kr(0.2,0,0.5,8,10),0,0.5,
400,800),0,0.5,0.1) }.scope(1, zoom: 4);
{ LFPulse.ar(LFPulse.kr(3, 0, 0.3, 200, 200), 0, 0.2, 0.1)
}.scope(1, zoom: 4);
{ LFPulse.ar(XLine.kr(100,15000,6),0,0.5,0.1) }.scope(1,
zoom: 4);
// pulse width modulation
{ LFPulse.ar(100,0,MouseY.kr(0,1),0.1) }.scope(1, zoom: 4);
{ LFPulse.ar(100,0,LFTri.kr(0.2,0,0.5,0.5),0.1) }.scope(1,
zoom: 4);
{ SyncSaw.ar(100, Line.kr(100, 800, 12), 0.1) }.scope(1,
zoom: 4);
{ SinOsc.ar(SinOsc.kr(SinOsc.kr(0.2,0,8,10),0,
400,800),0,0.1) }.scope(1, zoom: 4);
{ SinOsc.ar(SinOsc.kr(0.2, 0, 400,800),0,0.1) }.scope(1,
zoom: 4);
{ SinOsc.ar(800,0,0.1) }.scope(1, zoom: 4);
{ SinOsc.ar(XLine.kr(100,15000,6),0,0.1) }.scope(1, zoom:
4);
{ FSinOsc.ar(800,0,0.1) }.scope(1, zoom: 4);
// FSinOsc should not be frequency modulated.
// Since it is based on a filter at the edge of stability, it
will blow up:
{ FSinOsc.ar(FSinOsc.kr(FSinOsc.kr(0.2,0,8,10),0,
400,800),0,0.1) }.scope(1, zoom: 4);
{ Saw.ar(XLine.kr(20000,200,6),0.2) }.scope(1);
{ Saw.ar(XLine.kr(100,15000,6),0.2) }.scope(1); // no
aliasing
{ Pulse.ar(XLine.kr(20000,200,6),0.3,0.2) }.scope(1);
{ Pulse.ar(XLine.kr(100,15000,6),0.3,0.2) }.scope(1); //
no aliasing
// modulate pulse width{ SyncSaw.ar(100, MouseX.kr
(100, 1000), 0.1) }.scope(1, zoom: 4);
{ SyncSaw.ar(100, Line.kr(100, 800, 12), 0.1) }.scope
(1, zoom: 4);
{ SinOsc.ar(SinOsc.kr(SinOsc.kr(0.2,0,8,10),0,
400,800),0,0.1) }.scope(1, zoom: 4);
{ SinOsc.ar(SinOsc.kr(0.2, 0, 400,800),0,0.1) }.scope(1,
zoom: 4);
{ SinOsc.ar(800,0,0.1) }.scope(1, zoom: 4);
{ SinOsc.ar(XLine.kr(100,15000,6),0,0.1) }.scope(1, zoom:
4);
{ FSinOsc.ar(800,0,0.1) }.scope(1, zoom: 4);
// FSinOsc should not be frequency modulated.
// Since it is based on a filter at the edge of stability, it
will blow up:
{ FSinOsc.ar(FSinOsc.kr(FSinOsc.kr(0.2,0,8,10),0,
400,800),0,0.1) }.scope(1, zoom: 4);
{ Saw.ar(XLine.kr(20000,200,6),0.2) }.scope(1);
{ Saw.ar(XLine.kr(100,15000,6),0.2) }.scope(1); // no
aliasing
{ Pulse.ar(XLine.kr(20000,200,6),0.3,0.2) }.scope(1);
{ Pulse.ar(XLine.kr(100,15000,6),0.3,0.2) }.scope(1); // no
aliasing
// modulate pulse width
{ Pulse.ar(200, Line.kr(0.01,0.99,8), 0.2) }.scope(1);
// two band limited square waves thru a resonant low
pass filter
{ RLPF.ar(Pulse.ar([100,250],0.5,0.1), XLine.kr(8000,400,5),
0.05) }.scope(1);
{ Klang.ar(`[ [800, 1000, 1200],[0.3, 0.3, 0.3],[pi,pi,pi]], 1,
0) * 0.4}.scope(1);
{ Klang.ar(`[ {exprand(400, 2000)}.dup(16), nil, nil ], 1, 0) *
0.04 }.scope(1);
Με τα παραπάνω παραδείγματα είδαμε πώς μπορούν να
χρησιμοποιηθούν οι Ugen για την παραγωγή ήχων. Το Super-
Collider υποστηρίζει και ένα άλλο είδος γεννητριών που μπο-
ρούν να τροφοδοτηθούν από έναν πίνακα που ορίζει την πα-
ραγόμενη κυματομορφή.
•
Linux Labs - Μουσική
Στιγμιότυπο δρώμενου από την 2011 Borderline Biennale.
Και εδώ το SuperCollider είχε την τιμητική του. 4
Εκτός από τις γεννήτριες συγκεκριμένης μορφής
κυματομορφών, υπάρχει η δυνατότητα να
παραχθούν κυματομορφές με τιμές από πίνακα
που ορίζεται από το χρήστη.