78 lines
1.2 KiB
Text
78 lines
1.2 KiB
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{PV_Mul}
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Complex multiply.@section{related}
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Classes/FFT, Classes/IFFT, Classes/PV_Add, Classes/PV_CopyPhase, Classes/PV_MagMul, Classes/PV_Max, Classes/PV_Min
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@section{categories}
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UGens>FFT
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@section{description}
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Complex Multiplication:
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@racketblock[
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(RealA * RealB) - (ImagA * ImagB),
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(ImagA * RealB) + (RealA * ImagB)
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::
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]
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@section{classmethods}
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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{Examples}
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@racketblock[
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s.boot;
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(
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SynthDef("help-mul", { arg out=0;
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var inA, chainA, inB, chainB, chain ;
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inA = SinOsc.ar(500, 0, 0.5);
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inB = SinOsc.ar(Line.kr(100, 400, 5), 0, 0.5);
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chainA = FFT(LocalBuf(2048), inA);
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chainB = FFT(LocalBuf(2048), inB);
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chain = PV_Mul(chainA, chainB);
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Out.ar(out, 0.1 * IFFT(chain).dup);
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}).play(s);
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s.scope;
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)
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(
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SynthDef("help-mul2", { arg out=0;
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var inA, chainA, inB, chainB, chain ;
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inA = SinOsc.ar(500, 0, 0.5) * Line.kr;
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inB = LFNoise1.ar(20);
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chainA = FFT(LocalBuf(2048), inA);
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chainB = FFT(LocalBuf(2048), inB);
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chain = PV_Mul(chainA, chainB);
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Out.ar(out, 0.1 * IFFT(chain).dup);
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}).play(s);
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s.scope;
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)
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::
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]
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