74 lines
1.3 KiB
Text
74 lines
1.3 KiB
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{Limiter}
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Peak limiter@section{related}
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Classes/Amplitude, Classes/Compander, Classes/CompanderD, Classes/Normalizer
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@section{categories}
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UGens>Dynamics
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@section{description}
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Limits the input amplitude to the given level. Limiter will not overshoot
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like link::Classes/Compander:: will, but it needs to look ahead in the
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audio. Thus there is a delay equal to twice the value of the
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@racketblock[dur:: parameter.
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Limiter, unlike Compander, is completely transparent for an in range signal.
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]
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@section{classmethods}
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@section{method}
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ar
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@section{argument}
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in
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The signal to be processed.
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@section{argument}
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level
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The peak output amplitude level to which to normalize the input.
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@section{argument}
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dur
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aka lookAheadTime.
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The buffer delay time. Shorter times will produce smaller delays
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and quicker transient response times, but may introduce amplitude
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modulation artifacts.
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@section{Examples}
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@racketblock[
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(
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// example signal to process
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Synth.play({
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var z;
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z = Decay2.ar(
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Impulse.ar(8, LFSaw.kr(0.25, -0.6, 0.7)),
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0.001, 0.3, FSinOsc.ar(500));
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}, 0.8)
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)
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(
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Synth.play({
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var z;
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z = Decay2.ar(
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Impulse.ar(8, LFSaw.kr(0.25, -0.6, 0.7)),
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0.001, 0.3, FSinOsc.ar(500));
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[z, Limiter.ar(z, 0.4, 0.01)]
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}, 0.5)
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)
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::
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]
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