52 lines
684 B
Text
52 lines
684 B
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{Changed}
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@section{categories}
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UGens>Triggers, UGens>Filters>Linear
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Triggers when a value changes
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@section{description}
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Triggers when a value changes.
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@section{classmethods}
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@section{method}
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ar, kr
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A special case fixed filter.
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@section{argument}
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input
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signal input
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@section{argument}
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threshold
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threshold
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@section{discussion}
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Implements the formula:
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@racketblock[
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out(i) = abs(in(i) - in(i-1)) > thresh
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::
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]
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@section{examples}
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detect changes in a signal:
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@racketblock[
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(
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{
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var changingSignal = LFNoise0.ar(1000);
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var changed = Changed.ar(changingSignal);
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[changingSignal, changed]
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}.plot2
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);
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::
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]
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