[sdiy] Patchable polyphonic synth with FM or AM transmission idea

cheater00 cheater00 cheater00 at gmail.com
Tue Dec 25 22:13:40 CET 2018


The objective is to be able to create a way for a single patch cord to
carry 16 voices. I'm not sure how an FPGA in itself will help me, have
you got any ideas?

MADI interfaces are prohibitively expensive.

On Tue, Dec 25, 2018 at 9:19 PM oren levy <orenlevysticky at gmail.com> wrote:
>
> I think you’d be better off using FPGAs so you can mux the signals however you want along with data. Either a bunch of small ones or one big one per module.
> If you just want to share audio and don’t want to mess around with FPGAs, you can probably use a protocol like MADI. Not sure if MADI has a DC coupling requirement but if not, CV could also be passed.
> You’d probably want a very stable clock to sync all the modules to and optimize clock phase delays so everything can mux/demux in sync.
>
> Rock & Roll,
> Oren Levy
>
> > On Dec 25, 2018, at 10:01, Mike Beauchamp <list at mikebeauchamp.com> wrote:
> >
> >
> >> transmission. In a 16 voice system, at about 5 output functions per
> >> module, and 12 modules, you can easily use up ~1000 of those, which
> >> drops the price to $4. I was wondering what everyone thinks about this
> >> sort of scheme.
> >
> > So there's $4000 worth of just one IC in a single complete polysynth?
> >
> >
> >
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