67 lines
1.2 KiB
Text
67 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{EnvGate}
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singleton fade envelope@section{categories}
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Libraries>JITLib>NodeProxy
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@section{related}
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Classes/EnvGen
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@section{description}
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Convenience class for an envelope generator combining fadeTime and gate arguments.
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@section{ClassMethods}
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@section{method}
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new
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Returns an link::Classes/EnvGen::.
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@section{argument}
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i_level
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initial level of envelope (if set to 1, it starts open)
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@section{argument}
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gate
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a gate input. if nil, EnvGate creates a link::Classes/NamedControl:: named 'gate'
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@section{argument}
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fadeTime
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an input for both attack and decay time. if nil, EnvGate creates a link::Classes/NamedControl:: named 'fadeTime' (default time: 0.02)
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@section{argument}
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doneAction
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doneAction of the link::Classes/EnvGen::
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@section{argument}
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curve
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envelope curve
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@section{Examples}
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@racketblock[
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a = { LPF.ar(Saw.ar(200), 600) * EnvGate.new }.play;
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a.set(\fadeTime, 2);
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a.release;
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// the same as:
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a.set(\gate, 0);
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// several env gates can coexist in one synth def.
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(
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a = {
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var sound1 = LPF.ar(Saw.ar(80), 600) * EnvGate.new;
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var sound2 = RLPF.ar(Saw.ar(200) * 0.5, 6000 * EnvGate.new + 60, 0.1) * EnvGate.new;
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sound1 + sound2
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}.play;
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)
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a.set(\fadeTime, 5);
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a.release;
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::
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]
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