61 lines
1.2 KiB
Text
61 lines
1.2 KiB
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{Lag2UD}
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Exponential lag@section{categories}
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UGens>Filters
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@section{related}
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Classes/Lag, Classes/Lag2, Classes/Lag3, Classes/LagUD, Classes/Lag3UD
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@section{description}
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Lag2 is equivalent to Lag.kr(Lag.kr(in, time), time), thus resulting in a smoother transition. This saves on CPU as you only have to calculate the decay factor once instead of twice. See link::Classes/Lag:: for more details.
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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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input signal.
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@section{argument}
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lagTimeU
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60 dB lag time in seconds for the upgoing signal.
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@section{argument}
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lagTimeD
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60 dB lag time in seconds for the downgoing signal.
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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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SynthDef( \lag2ud_help,
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{ arg freq=300,lagup=1, lagdown=5;
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Out.ar( 0,
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SinOsc.ar( // sine wave
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Lag2UD.kr( // lag the frequency
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freq,
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lagup,
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lagdown
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),
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0, // phase
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0.2 // sine amplitude
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)
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);
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}).add;
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)
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x = Synth.new( \lag2ud_help ); // create the synth
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x.set( \freq, 500 ); // set the frequency to a higher value (takes 1 second)
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x.set( \freq, 100 ); // set the frequency to a lower value (takes 5 seconds)
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x.free;
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::
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]
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