Analog / Digital Hybrid

[Christopher List]

....sorry, I deleted the original message....

Let me get this straight, are you using the CPU to create your source 
waveforms? 
If so, the only analog part of this synth is the filter - right?

You should just buy a Waldorf uWave, or at least copy the design - it's a very 
"hackable" synth.

It's analog for the filter, VCA, panning and routing - but otherwise all 
controlled by a 68000 uProc. 

It uses a CEM3389 (or CEM3387) on each voice for the analog section. This chip 
has voltage controlled freq. res. pan and gain. 

You can also save some work by *not* using a DACs for each CV. You use a DAC 
and an octal Sample and Hold (uWave uses a CEM5508 - I think) so that you can 
run several CV's with one DAC.

I can send the schems if you like....

- CList