52 lines
1.2 KiB
Text
52 lines
1.2 KiB
Text
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class:: LFNoise2
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summary:: Quadratic noise.
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related:: Classes/LFClipNoise, Classes/LFDClipNoise, Classes/LFDNoise0, Classes/LFDNoise1, Classes/LFDNoise3, Classes/LFNoise0, Classes/LFNoise1
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categories:: UGens>Generators>Stochastic
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Description::
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Generates quadratically interpolated random values at a rate given by
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the nearest integer division of the sample rate by the
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code::freq:: argument.
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note::
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quadratic interpolation means that the noise values can occasionally extend beyond the normal range of +-1, if the freq varies in certain ways. If this is undesirable then you might like to clip2 the values, or use a linearly-interpolating unit instead.
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::
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classmethods::
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method::ar, kr
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argument::freq
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Approximate rate at which to generate random values.
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argument::mul
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Output will be multiplied by this value.
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argument::add
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This value will be added to the output.
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Examples::
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code::
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{ LFNoise2.ar(1000, 0.25) }.play;
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// modulate frequency
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{ LFNoise2.ar(XLine.kr(1000, 10000, 10), 0.25) }.play;
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// as frequency modulator
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(
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{ SinOsc.ar(
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LFNoise2.ar(4, 400, 450),
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0, 0.2
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)
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}.play;
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)
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// freq is the rate of interpolation points
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{ var freq = 1000; [LFNoise2.ar(freq), Impulse.ar(freq)] }.plot
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::
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