73 lines
1.3 KiB
Racket
73 lines
1.3 KiB
Racket
#lang scribble/manual
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@(require (for-label racket))
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@title{Lag}
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Exponential lag@section{related}
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Classes/Lag2, Classes/Lag3, Classes/VarLag, Classes/LagUD
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@section{categories}
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UGens>Filters>Linear
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@section{description}
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This is essentially the same as link::Classes/OnePole:: except that
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instead of supplying the coefficient directly, it is calculated from a 60
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dB lag time. This is the time required for the filter to converge to
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within 0.01% of a value. This is useful for smoothing out control
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signals.
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For linear and other alternatives, see link::Classes/VarLag::.
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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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lagTime
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60 dB lag time in seconds.
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@section{argument}
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mul
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Output will be multiplied by this value.
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@section{argument}
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add
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This value will be added to the output.
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@section{Examples}
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@racketblock[
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(
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// used to lag pitch
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{
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SinOsc.ar( // sine wave
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Lag.kr( // lag the modulator
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LFPulse.kr(4, 0, 0.5, 50, 400), // frequency modulator
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Line.kr(0, 1, 15) // modulate lag time
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),
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0, // phase
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0.3 // sine amplitude
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)
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}.play
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)
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::
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]
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