[sdiy] Design solutions for analog polyphony and/or banks of VCOs ?

[René Schmitz]

Hi JBV and List,

> So what if 1 expo conv per VCO is needed ?
> What about a uC or Eprom-based multiplexed expo conv,
> with several "simple" VCO cores, as quite a few schemos
> are available online ?

The disadvantage is the (possibly) limited resolution if you want to be 
able to apply voltage control to such a processor controlled oscillator.
Also you need a pretty good DA to control a linear oscillator precisely.

> Any better idea ?

Have a look at the Korg Polysix. One expo convertor is muxed to several 
linear VCOs.

Cheers,
  René

-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159