/usr/share/SuperCollider/HelpSource/Classes/Osc.schelp is in supercollider-common 1:3.6.3~repack-5.
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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 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | class:: Osc
summary:: Interpolating wavetable oscillator.
related:: Classes/COsc, Classes/OscN, Classes/VOsc, Classes/VOsc3, Classes/Wavetable
categories:: UGens>Generators>Deterministic
Description::
Linear interpolating wavetable lookup oscillator with frequency and
phase modulation inputs.
This oscillator requires a buffer to be filled with a wavetable format
signal. This preprocesses the Signal into a form which can be used
efficiently by the Oscillator. The buffer size must be a power of 2.
This can be acheived by creating a Buffer object and sending it one of
the "b_gen" messages ( link::Classes/Buffer#-sine1::, link::Classes/Buffer#-sine2::, link::Classes/Buffer#-sine3:: ) with the wavetable flag set
to true.
This can also be achieved by creating a link::Classes/Signal:: object and sending it
the 'asWavetable' message, thereby creating a Wavetable object in the required format. Then, the wavetable data may be transmitted to the server using the link::Classes/Buffer#*sendCollection:: or link::Classes/Buffer#*loadCollection:: methods.
classmethods::
method::ar, kr
argument::bufnum
Buffer index.
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::
(
s = Server.local;
b = Buffer.alloc(s, 512, 1);
b.sine1(1.0/[1,2,3,4,5,6], true, true, true);
SynthDef("help-Osc",{ arg out=0,bufnum=0;
Out.ar(out,
Osc.ar(bufnum, 200, 0, 0.5)
)
}).play(s,[\out, 0, \bufnum, b.bufnum]);
)
(
s = Server.local;
b = Buffer.alloc(s, 512, 1);
b.sine1(1.0/[1,2,3,4,5,6], true, true, true);
SynthDef("help-Osc",{ arg out=0,bufnum=0;
Out.ar(out,
Osc.ar(bufnum, XLine.kr(2000,200), 0, 0.5)// modulate freq
)
}).play(s,[\out, 0, \bufnum, b.bufnum]);
)
(
s = Server.local;
b = Buffer.alloc(s, 512, 1);
b.sine1([1.0], true, true, true);
SynthDef("help-Osc",{ arg out=0,bufnum=0;
Out.ar(out,
Osc.ar(bufnum,
Osc.ar(bufnum,
XLine.kr(1,1000,9),
0,
200,
800),
0,
0.25)
)
}).play(s,[\out, 0, \bufnum, b.bufnum]);
)
(
// modulate phase
s = Server.local;
b = Buffer.alloc(s, 512, 1);
b.sine1([1.0], true, true, true);
SynthDef("help-Osc",{ arg out=0,bufnum=0;
Out.ar(out,
Osc.ar(bufnum,
800,
Osc.ar(bufnum,
XLine.kr(20,8000,10),
0,
2pi),
0.25)
)
}).play(s,[\out, 0, \bufnum, b.bufnum]);
)
(
// 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-Osc",{ arg out=0,bufnum=0;
Out.ar(out,
Osc.ar(bufnum, [80,80.2], 0, 0.2)
)
}).play(s,[\out, 0, \bufnum, b.bufnum]);
)
(
fork {
var n = 32;
50.do {
b.sine1(Array.rand(n,0,1).cubed, true, true, true);
0.25.wait;
};
};
)
::
|