[Stk] Wah-wah filter?

[Perry Cook]

My former posting of this had a test .wav file in that caused
the stk list moderator to hold it.  In case that doesn't get thru
to the list (which is fine), here's a version with a smaller test
file.

> Here's the ChucK project that implements and tests a simple 
> 2nd order resonator modeled after Julius' experimental CryBaby data.
> I use the ChucK ResonZ, because it takes .freq and .Q directly.
> It will take a touch more work to get that translated into parameters
> for the STK BiQuad or 2Pole, but totally doable.  Q is just Freq/BW,
> so with a little experimentation it should be easy to derive a radii[]
> array to use instead of the Qs[] array I use.
> 
> (Gary/Others, maybe we should fold ChucK's ResonZ,
> BPF, HPF, and LPF back into STK???).  
> 
> Next i'm going to hook it to a MIDI pedal to control it.   Enjoy!!  
> 
> PRC


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