HelpSource/Classes/PV_MagMul.schelp

   1 class:: PV_MagMul
   2 summary:: Multiply magnitudes.
   3 related:: Classes/FFT, Classes/IFFT, Classes/PV_Add, Classes/PV_CopyPhase, Classes/PV_Max, Classes/PV_Min, Classes/PV_Mul
   4 categories:: UGens>FFT
   5
   6 Description::
   7
   8 Multiplies magnitudes of two inputs and keeps the phases of the first input.
   9
  10
  11 classmethods::
  12
  13 method::new
  14
  15 argument::bufferA
  16 FFT buffer A.
  17
  18 argument::bufferB
  19 FFT buffer B.
  20
  21 Examples::
  22
  23 code::
  24
  25 s.boot;
  26 b = Buffer.read(s, Help.dir +/+ "sounds/a11wlk01.wav");
  27
  28 (
  29 SynthDef("help-magMul", { arg out=0;
  30         var inA, chainA, inB, chainB, chain;
  31         inA = WhiteNoise.ar(0.2);
  32         inB = LFSaw.ar(100, 0, 0.2);
  33         chainA = FFT(LocalBuf(2048), inA);
  34         chainB = FFT(LocalBuf(2048), inB);
  35         chain = PV_MagMul(chainA, chainB);
  36         Out.ar(out, 0.1 * IFFT(chain).dup);
  37 }).play(s);
  38 )
  39
  40 (
  41 SynthDef("help-magMul2", { arg out=0, soundBufnum=2;
  42         var inA, chainA, inB, chainB, chain;
  43         inA = LFSaw.ar([100, 150], 0, 0.2);
  44         inB = PlayBuf.ar(1, soundBufnum, BufRateScale.kr(soundBufnum), loop: 1);
  45         chainA = FFT(LocalBuf(2048), inA);
  46         chainB = FFT(LocalBuf(2048), inB);
  47         chain = PV_MagMul(chainA, chainB);
  48         Out.ar(out,  0.03 * IFFT(chain));
  49 }).play(s, [\soundBufnum, b.bufnum]);
  50 )
  51
  52 b.free
  53
  54 ::
  55