HelpSource/Classes/PV_MagSquared.schelp

   1 class:: PV_MagSquared
   2 summary:: Square magnitudes.
   3 related:: Classes/FFT, Classes/IFFT
   4 categories:: UGens>FFT
   5
   6 Description::
   7
   8 Squares the magnitudes and renormalizes to previous peak. This makes weak
   9 bins weaker.
  10
  11
  12 classmethods::
  13
  14 method::new
  15
  16 argument::buffer
  17
  18 FFT buffer.
  19
  20
  21 Examples::
  22
  23 code::
  24
  25 s.boot;
  26
  27 (
  28 b = Buffer.alloc(s,2048,1);
  29 c = Buffer.read(s, Help.dir +/+ "sounds/a11wlk01.wav");
  30 )
  31
  32 (
  33 SynthDef("help-magSquared", {  arg out=0, bufnum=0, soundBufnum=2;
  34         var in, chain;
  35         in = PlayBuf.ar(1, soundBufnum, BufRateScale.kr(soundBufnum), loop: 1);
  36         chain = FFT(bufnum, in);
  37         chain = PV_MagSquared(chain);
  38         Out.ar(out, 0.003 * IFFT(chain).dup);
  39 }).play(s,[\out, 0, \bufnum, b.bufnum, \soundBufnum, c.bufnum]);
  40 )
  41
  42 ::
  43