HelpSource/Classes/PV_MagSmear.schelp

   1 class:: PV_MagSmear
   2 summary:: Average magnitudes across bins.
   3 categories:: UGens>FFT
   4
   5 Description::
   6
   7 Average a bin's magnitude with its neighbors.
   8
   9
  10 classmethods::
  11
  12 method::new
  13
  14 argument::buffer
  15
  16 FFT buffer.
  17
  18
  19 argument::bins
  20
  21 Number of bins to average on each side of bin. As this number
  22 rises, so will CPU usage.
  23
  24
  25 Examples::
  26
  27 code::
  28
  29 s.boot;
  30
  31 (
  32 b = Buffer.alloc(s,2048,1);
  33 c = Buffer.read(s, Help.dir +/+ "sounds/a11wlk01.wav");
  34 )
  35
  36 (
  37 SynthDef("help-magSmear", { arg out=0, bufnum=0;
  38         var in, chain;
  39         in = LFSaw.ar(500, 0, Decay2.ar(Impulse.ar(2,0,0.2), 0.01, 2));
  40         chain = FFT(bufnum, in);
  41         chain = PV_MagSmear(chain, MouseX.kr(0, 100));
  42         Out.ar(out, 0.5 * IFFT(chain).dup);
  43 }).play(s,[\out, 0, \bufnum, b.bufnum]);
  44 )
  45
  46 (
  47 SynthDef("help-magSmear2", { arg out=0, bufnum=0, soundBufnum=2;
  48         var in, chain;
  49         in = PlayBuf.ar(1, soundBufnum, BufRateScale.kr(soundBufnum), loop: 1);
  50         chain = FFT(bufnum, in);
  51         chain = PV_MagSmear(chain, MouseX.kr(0, 100));
  52         Out.ar(out, 0.5 * IFFT(chain).dup);
  53 }).play(s,[\out, 0, \bufnum, b.bufnum, \soundBufnum, c.bufnum]);
  54 )
  55
  56 ::