104 lines
1.4 KiB
Text
104 lines
1.4 KiB
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{LFPulse}
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pulse oscillator@section{categories}
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UGens>Generators>Deterministic
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@section{related}
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Classes/LFSaw
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@section{description}
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A non-band-limited pulse oscillator. Outputs a high value of one and a low value of zero.
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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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freq
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frequency in Hertz
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@section{argument}
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iphase
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initial phase offset in cycles ( 0..1 )
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@section{argument}
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width
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pulse width duty cycle from zero to one.
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@section{argument}
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mul
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@section{argument}
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add
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@section{instancemethods}
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@section{private}
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signalRange
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@section{examples}
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a plot:
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@racketblock[
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{ LFPulse.ar(Line.kr(100, 800, 0.1)) }.plot(0.1);
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::
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50 Hz wave:
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]
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@racketblock[
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{ LFPulse.ar(50) * 0.1 }.play;
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::
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modulating frequency:
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]
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@racketblock[
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{ LFPulse.ar(XLine.kr(1, 200, 10), 0, 0.2, 0.1) }.play;
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::
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amplitude modulation:
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]
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@racketblock[
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{ LFPulse.kr(XLine.kr(1, 200, 10), 0, 0.2) * SinOsc.ar(440) * 0.1 }.play;
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::
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used as both Oscillator and LFO:
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]
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@racketblock[
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{ LFPulse.ar(LFPulse.kr(3, 0, 0.3, 200, 200), 0, 0.2, 0.1) }.play;
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::
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scope:
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]
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@racketblock[
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{ LFPulse.ar(500, 0, MouseX.kr, 0.5) }.scope;
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::
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compare with band limited Pulse UGen:
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]
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@racketblock[
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(
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{
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[
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Pulse.ar(100, 0.3, 0.5),
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LFPulse.ar(100, 0, 0.3, 0.5)
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] * 0.2
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}.scope(bufsize: 44100, zoom: 5)
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)
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::
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]
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