47 lines
924 B
Text
47 lines
924 B
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{Timer}
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Returns time since last triggered.@section{categories}
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UGens>Triggers
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@section{description}
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When triggered, Timer measures the time (in seconds) elapsed since the previous trigger, and outputs this time value as a constant. Its output will not change until the next trigger. The initial value is 0.
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If you need the time since the last trigger, where the time is continually updated, see link::Classes/Sweep::.
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@section{classmethods}
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@section{private}
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categories
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@section{method}
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ar, kr
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@section{argument}
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trig
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A trigger occurs when trig signal crosses from non-positive to positive.
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@section{Examples}
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@racketblock[
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// using timer to modulate sine frequency: the slower the trigger is the higher the frequency
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(
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{ var trig;
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trig = Impulse.kr(MouseX.kr(0.5, 20, 1));
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SinOsc.ar(Timer.kr(trig) * 500 + 500, 0, 0.2)
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}.play;
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)
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::
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]
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