37 lines
708 B
Text
37 lines
708 B
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{ZeroCrossing}
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Zero crossing frequency follower@section{categories}
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UGens>Analysis>Pitch
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@section{description}
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Outputs a frequency based upon the distance between interceptions of the X axis. The X intercepts are determined via linear interpolation so this gives better than just integer wavelength resolution. This is a very crude pitch follower, but can be useful in some situations.
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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{examples}
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@racketblock[
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s.boot;
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(
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{
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var a;
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a = SinOsc.ar(SinOsc.kr(1, 0, 600,700), 0, 0.1);
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[a, ZeroCrossing.ar(a) * 0.0005]
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}.scope;
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)
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::
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]
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