146 lines
2.5 KiB
Text
146 lines
2.5 KiB
Text
|
class:: OscN
|
||
|
|
summary:: Noninterpolating wavetable oscillator.
|
||
|
|
related:: Classes/COsc, Classes/Osc, Classes/VOsc, Classes/VOsc3
|
||
|
|
categories:: UGens>Generators>Deterministic
|
||
|
|
|
||
|
|
|
||
|
|
Description::
|
||
|
|
|
||
|
|
Noninterpolating wavetable lookup oscillator with frequency and phase
|
||
|
|
modulation inputs. It is usually better to use the interpolating
|
||
|
|
oscillator link::Classes/Osc:: .
|
||
|
|
|
||
|
|
|
||
|
|
classmethods::
|
||
|
|
|
||
|
|
method::ar, kr
|
||
|
|
|
||
|
|
argument::bufnum
|
||
|
|
Buffer index. the buffer size must be a power of 2.
|
||
|
|
The buffer should NOT be filled using Wavetable format (b_gen
|
||
|
|
commands should set wavetable flag to false. Raw signals (not
|
||
|
|
converted with asWavetable) can be saved to disk and loaded
|
||
|
|
into the buffer.
|
||
|
|
|
||
|
|
|
||
|
|
argument::freq
|
||
|
|
Frequency in Hertz.
|
||
|
|
|
||
|
|
argument::phase
|
||
|
|
Phase offset or modulator in radians.
|
||
|
|
|
||
|
|
argument::mul
|
||
|
|
Output will be multiplied by this value.
|
||
|
|
|
||
|
|
argument::add
|
||
|
|
This value will be added to the output.
|
||
|
|
|
||
|
|
Examples::
|
||
|
|
|
||
|
|
code::
|
||
|
|
|
||
|
|
// compare examples below with interpolating Osc examples.
|
||
|
|
|
||
|
|
(
|
||
|
|
s = Server.local;
|
||
|
|
b = Buffer.alloc(s,512,1);
|
||
|
|
b.sine1(1.0/[1,2,3,4,5,6],true,false,true);
|
||
|
|
|
||
|
|
SynthDef("help-OscN",{ arg out=0,bufnum=0;
|
||
|
|
Out.ar(out,
|
||
|
|
OscN.ar(bufnum, 500, 0, 0.5)
|
||
|
|
)
|
||
|
|
}).play(s,[0,0,1,b.bufnum]);
|
||
|
|
|
||
|
|
)
|
||
|
|
b.free;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
(
|
||
|
|
// noninterpolating - there are noticeable artifacts
|
||
|
|
// modulate freq
|
||
|
|
|
||
|
|
s = Server.local;
|
||
|
|
b = Buffer.alloc(s,512,1);
|
||
|
|
b.sine1(1.0/[1,2,3,4,5,6].squared,true,false,true);
|
||
|
|
|
||
|
|
SynthDef("help-OscN",{ arg out=0,bufnum=0;
|
||
|
|
Out.ar(out,
|
||
|
|
OscN.ar(bufnum, XLine.kr(2000,200), 0, 0.5)
|
||
|
|
)
|
||
|
|
}).play(s,[\out,0,\bufnum,b.bufnum]);
|
||
|
|
|
||
|
|
)
|
||
|
|
b.free;
|
||
|
|
|
||
|
|
(
|
||
|
|
// sounds very different than the Osc example
|
||
|
|
s = Server.local;
|
||
|
|
b = Buffer.alloc(s, 512, 1);
|
||
|
|
b.sine1([1.0], true, true, true);
|
||
|
|
|
||
|
|
SynthDef("help-OscN",{ arg out=0,bufnum=0;
|
||
|
|
Out.ar(out,
|
||
|
|
OscN.ar(bufnum,
|
||
|
|
OscN.ar(bufnum,
|
||
|
|
XLine.kr(1,1000,9),
|
||
|
|
0,
|
||
|
|
200,
|
||
|
|
800),
|
||
|
|
0,
|
||
|
|
0.25)
|
||
|
|
)
|
||
|
|
}).play(s,[\out, 0, \bufnum, b.bufnum]);
|
||
|
|
|
||
|
|
)
|
||
|
|
b.free;
|
||
|
|
|
||
|
|
(
|
||
|
|
// modulate phase
|
||
|
|
s = Server.local;
|
||
|
|
b = Buffer.alloc(s, 512, 1);
|
||
|
|
b.sine1([1.0], true, true, true);
|
||
|
|
|
||
|
|
SynthDef("help-OscN",{ arg out=0,bufnum=0;
|
||
|
|
Out.ar(out,
|
||
|
|
OscN.ar(bufnum,
|
||
|
|
800,
|
||
|
|
OscN.ar(bufnum,
|
||
|
|
XLine.kr(20,8000,10),
|
||
|
|
0,
|
||
|
|
2pi),
|
||
|
|
0.25)
|
||
|
|
)
|
||
|
|
}).play(s,[\out, 0, \bufnum, b.bufnum]);
|
||
|
|
)
|
||
|
|
b.free;
|
||
|
|
|
||
|
|
|
||
|
|
(
|
||
|
|
// change the buffer while its playing
|
||
|
|
s = Server.local;
|
||
|
|
b = Buffer.alloc(s, 4096, 1);
|
||
|
|
b.sine1(1.0/[1,2,3,4,5,6], true, true, true);
|
||
|
|
|
||
|
|
SynthDef("help-OscN",{ arg out=0,bufnum=0;
|
||
|
|
Out.ar(out,
|
||
|
|
OscN.ar(bufnum, [80,80.2], 0, 0.2)
|
||
|
|
)
|
||
|
|
}).play(s,[\out, 0, \bufnum, b.bufnum]);
|
||
|
|
)
|
||
|
|
|
||
|
|
(
|
||
|
|
Routine({
|
||
|
|
var n = 32;
|
||
|
|
50.do({
|
||
|
|
b.sine1(Array.rand(n,0,1).cubed, true, true, true);
|
||
|
|
0.25.wait;
|
||
|
|
});
|
||
|
|
}).play;
|
||
|
|
)
|
||
|
|
b.free;
|
||
|
|
|
||
|
|
::
|
||
|
|
|