76 lines
1.7 KiB
Text
76 lines
1.7 KiB
Text
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class:: Klang
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summary:: Sine oscillator bank
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related:: Classes/Klank, Classes/DynKlang
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categories:: UGens>Generators>Deterministic
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Description::
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Klang is a bank of fixed frequency sine oscillators. Klang is more
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efficient than creating individual oscillators but offers less
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flexibility.
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classmethods::
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method::ar
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argument::specificationsArrayRef
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A link::Classes/Ref:: to an link::Classes/Array:: of three Arrays:
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definitionlist::
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## frequencies: || An Array of oscillator frequencies.
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## amplitudes: || an Array of oscillator amplitudes, or nil. If nil, then amplitudes default to 1.0.
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## phases: || an Array of initial phases, or nil. If nil, then phases default to 0.0.
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::
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argument::freqscale
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A scale factor multiplied by all frequencies at initialization time.
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argument::freqoffset
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An offset added to all frequencies at initialization time.
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discussion::
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The parameters in code::specificationsArrayRef:: can't be changed after it has been started.
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For a modulatable but less efficient version, see link::Classes/DynKlang::.
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Examples::
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code::
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play({ Klang.ar(`[ [800, 1000, 1200], [0.3, 0.3, 0.3], [pi, pi, pi]], 1, 0) * 0.4});
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play({ Klang.ar(`[ [800, 1000, 1200], nil, nil], 1, 0) * 0.25});
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play({ Klang.ar(`[ Array.rand(12, 600.0, 1000.0), nil, nil ], 1, 0) * 0.05 });
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(
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{
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loop({
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play({
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Pan2.ar(Klang.ar(`[ Array.rand(12, 200.0, 2000.0), nil, nil ], 1, 0), 1.0.rand)
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* EnvGen.kr(Env.sine(4), 1, 0.02, doneAction: Done.freeSelf);
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});
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2.wait;
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})
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}.fork;
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)
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// Multichannel expansion:
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(
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{
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loop({
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play({
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var nPartials = 12, nChans = 5, n = nPartials * nChans;
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Splay.ar(Klang.ar(`[ { { rrand(200.0, 2000.0) } ! nPartials } ! nChans, nil, nil ], 1, 0))
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* EnvGen.kr(Env.sine(4), 1, 0.02, doneAction: Done.freeSelf);
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});
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2.wait;
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})
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}.fork;
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)
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::
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