68 lines
1.3 KiB
Text
68 lines
1.3 KiB
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{PV_MagDiv}
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Division of magnitudes@section{categories}
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UGens>FFT
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@section{description}
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Divides magnitudes of two inputs and keeps the phases of the first input.
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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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new
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@section{argument}
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bufferA
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fft buffer A.
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@section{argument}
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bufferB
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fft buffer B.
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@section{argument}
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zeroed
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number to use when bins are zeroed out, i.e. causing division by zero (defaults to 0.0001)
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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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SynthDef("help-magMul", { arg out=0;
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var inA, chainA, inB, chainB, chain;
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inA = WhiteNoise.ar(0.2);
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inB = LFSaw.ar(100, 0, 0.2);
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chainA = FFT(LocalBuf(2048), inA);
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chainB = FFT(LocalBuf(2048), inB);
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chain = PV_MagDiv(chainA, chainB);
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Out.ar(out, 0.5 * IFFT(chain).dup);
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}).play;
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)
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c = Buffer.read(s, Platform.resourceDir +/+ "sounds/a11wlk01.wav");
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(
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SynthDef("help-magMul2", { arg out=0, soundBufnum=0;
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var inA, chainA, inB, chainB, chain;
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inA = LFSaw.ar([100, 150], 0, 0.2);
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inB = PlayBuf.ar(1, soundBufnum, BufRateScale.kr(soundBufnum), loop: 1);
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chainA = FFT(LocalBuf(2048), inA);
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chainB = FFT(LocalBuf(2048), inB);
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chain = PV_MagDiv(chainA, chainB);
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Out.ar(out, 0.1 * IFFT(chain));
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}).play(s,[\out, 0, \soundBufnum, c]);
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)
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c.free;
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::
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]
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