Filter acrusher
  Reduce audio bit resolution.
    Inputs:
       #0: default (audio)
    Outputs:
       #0: default (audio)
acrusher AVOptions:
  level_in          <double>     ..F.A.... set level in (from 0.015625 to 64) (default 1)
  level_out         <double>     ..F.A.... set level out (from 0.015625 to 64) (default 1)
  bits              <double>     ..F.A.... set bit reduction (from 1 to 64) (default 8)
  mix               <double>     ..F.A.... set mix (from 0 to 1) (default 0.5)
  mode              <int>        ..F.A.... set mode (from 0 to 1) (default lin)
     lin             0            ..F.A.... linear
     log             1            ..F.A.... logarithmic
  dc                <double>     ..F.A.... set DC (from 0.25 to 4) (default 1)
  aa                <double>     ..F.A.... set anti-aliasing (from 0 to 1) (default 0.5)
  samples           <double>     ..F.A.... set sample reduction (from 1 to 250) (default 1)
  lfo               <boolean>    ..F.A.... enable LFO (default false)
  lforange          <double>     ..F.A.... set LFO depth (from 1 to 250) (default 20)
  lforate           <double>     ..F.A.... set LFO rate (from 0.01 to 200) (default 0.3)


