53 lines
917 B
Text
53 lines
917 B
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{Decay}
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Exponential decay@section{related}
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Classes/Decay2
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@section{categories}
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UGens>Filters>Linear, UGens>Envelopes
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@section{description}
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This is essentially the same as link::Classes/Integrator:: except that
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instead of supplying the coefficient directly, it is calculated from a 60
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dB decay time. This is the time required for the integrator to lose 99.9%
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of its value or -60dB. This is useful for exponential decaying envelopes
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triggered by impulses.
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@section{classmethods}
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@section{method}
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ar, kr
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@section{argument}
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in
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The input signal.
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@section{argument}
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decayTime
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60 dB decay time in seconds.
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@section{argument}
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mul
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@section{argument}
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add
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@section{Examples}
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@racketblock[
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plot({ Decay.ar(Impulse.ar(1), 0.01) });
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// used as an envelope
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play({ Decay.ar(Impulse.ar(XLine.kr(1,50,20), 0.25), 0.2, PinkNoise.ar, 0) });
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::
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]
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