HelpSource/Classes/BBandStop.schelp

   1 class:: BBandStop
   2 summary:: Band reject filter
   3 categories:: UGens>Filters>BEQSuite
   4 related:: Classes/SOS, Classes/BLowPass, Classes/BLowPass4, Classes/BHiPass, Classes/BHiPass4, Classes/BPeakEQ, Classes/BLowShelf, Classes/BHiShelf, Classes/BBandPass, Classes/BAllPass
   5
   6 description::
   7 The B equalization suite is based on the Second Order Section (link::Classes/SOS::) biquad UGen.
   8
   9 note::
  10 Biquad coefficient calculations imply certain amount of CPU overhead. These plugin UGens contain optimizations such that the coefficients get updated only when there has been a change to one of the filter's parameters. This can cause spikes in CPU performance and should be considered when using several of these units.
  11 ::
  12
  13 classmethods::
  14
  15 method:: ar
  16 argument:: in
  17 input signal to be processed.
  18 argument:: freq
  19 center frequency.
  20 argument:: bw
  21 the bandwidth in octaves between -3 dB frequencies.
  22
  23 examples::
  24 code::
  25 s.boot;
  26 (
  27 z = {
  28 BBandStop.ar(
  29         SoundIn.ar([0,1]),
  30         MouseX.kr(20, 20000, \exponential),
  31         MouseY.kr(0.0, 10.0, \linear), // bw
  32         0.5); // mul
  33 }.play)
  34 z.release;
  35
  36 (
  37 z = {
  38 BBandStop.ar(
  39         WhiteNoise.ar ! 2,
  40         MouseX.kr(20, 20000, \exponential),
  41         MouseY.kr(0.0, 10.0, \linear), // bw
  42         0.1); // mul
  43 }.play)
  44 z.release;
  45
  46 (
  47 z = { // drill...
  48 BBandStop.ar(
  49         SinOsc.ar(1000) ! 2,
  50         MouseX.kr(800, 1200, \exponential),
  51         MouseY.kr(0.0, 10.0, \linear), // bw
  52         0.1); // mul
  53 }.play)
  54 z.release;
  55
  56 (
  57 z = { // nada
  58 BBandStop.ar(
  59         SinOsc.ar(1000) ! 2,
  60         1000,
  61         MouseY.kr(0.0, 10.0, \linear), // bw
  62         0.5); // mul
  63 }.play)
  64 z.release;
  65 ::