[sdiy] digital control of CV

[Tom Wiltshire]

Jure,

That's pretty much exactly the scheme I had in mind for my own  
monosynth project. The only difference is that I was thinking of  
using multiple octal DACs (AD5346s or similar) on the output side,  
which avoids the need for sample-and-hold stages and makes the board  
neater.

Regards,
Tom

On 2 Sep 2007, at 21:25, jure zitnik wrote:

> hi guys.
>
> in the recent months i've been toying with the idea to toss a few diy
> modules in a box, and call it a simple subtractive monosynth. fixed
> architecture. now i'm thinking it'd be really nice to have it
> digitally controlled, patch storage and such.
>
> now from what i've seen such things are mostly done by multiplexing
> control knobs, getting the multiplexed control signals (CVs?) in an
> ADC, enter digital domain (patch store/recall), and then back to
> analogue through a single fast DAC that constantly cycles over all the
> CVs. separate modules' inputs each have a sample+hold circuit that
> samples when that module's CV comes up.
>
> am i way off? can anyone direct me to a similar project? i'd love to
> see how other people did that in the past, i'm sure it's been done
> many times.
>
> thanks,
> jure
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>