daveb2@... writes:
>>It's been too long since I played a Polymoog for me to remember - how does
this filter section sound? How does a 3 band lowpass or highpass section
work, anyway?<<
The Polymoog 3 band resonator section sounds great and is good for doing
drastic sound changes. Each of the three sections has a Cutoff Freq,
Resonance and Gain control. The frequency of each section can cover a range:
60-300, 300-1500, 1500-7500 Hz. And then there is a Pass Mode switch for
Low/Band/High. If in Bandpass mode it is easy to understand. It works like
three bandpass filters in parallel and their gain levels adjust their
relative loudnesses. Where it gets a little more unclear is when switched
into Lowpass or Highpass mode because of the total lack of an explaination in
the manual (but it does have a graphic representation). It appears that each
of the three filters can now become a lowpass or highpass filter, but those
filters still only process audio within their limited audio band. So for
example the middle lowpass filter won't pass all audio below its cutoff,
instead it passes all audio below its cutoff but above 300Hz. At least
that's what the graphic indicates. It's a strange beast. The Polymoog
allows an external audio signal to be processed through its resonator section
so even if you find the Polymoog not worth playing anymore, it still makes a
nice audio processor.
-Elhardt