Jimmy,
keep in mind we have no prove that it works at all.
The Sherman could be fine for doing a test.
What inputs and outputs does the sherman have? only audio in/out or also control signals.
if I look at the shippmann filter it seems like the envelopes can be triggered to gate signals. If the creamware gate module can send a compatible gate signal to the box (which has to be proven first) you could trigger the analog filterenvelope to the software synth via an audio out.
http://www.schippmann-music.com/ebbeundflut.html
the routing would be
softsynth (both outputs as pads on the soft synth)
-audio out (before filterstage)
-gate trigger out
both these pads should be connected to 2 audio outputs
back on softsynth there would be inputs for taking audio signal back into the softsynth.
The other option would be to use the digital envelopes from the CW synth, routed to audio outputs and then into the VCF of the shippmann.
I`m pretty sure that this would work.
The Shippmann is very expensive, so we have to find a filter that is relative cheap and also has inputs for controlling the filters via audio signals.
It doesnt make sense to build a hybrid monophonic synth around a 1200€ filter, as you can find a full monophonic analog synth for the same price also.
We just need a filter that has audio in/out and a vcf_input for a low price.
Problem is the cheap ones only have audio in/out, so they are useless, the more expensive ones don`t make sense for a hybrid_synth in terms price/useage ratio.
polyphony should be almost impossible without the help of Soniccore themselves, as you would need voice adressing intelligence inside the synth.
Waldorf has done this on the AFB, but it was problematic due to the usb bus, which introduces a latency. At least it did work.
BTW, why don`t Waldorf and Soniccore team up to build the oversynth.?
They both have knowledge that would complement quite well.