You can mix sounds from the VG-800 (USB1+2) with synth sounds generated from the VG-800’s USB 3 to 7 signals.
To do this, you can use the Audio Device module by selecting the VG-800 as the audio source.
Here after is an example:
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No. MG3 is able to select the right channels for the hex inputs, USB channels 3 to 8 from the VG-800.
In this case, you even do not need to select an Audio module, MG3 select the USB inputs 1 from the VG-800 as the audio input.
FYI, I’ve had the same experience and I’ve reported it to JO.
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As you can see in this screenshot, on the first row the VG-800 you have the output of the VG-800, and in the same time, the 6 signals from VG-800 are selected for the HEX inputs of the MG3.
As @lpspecial indicated the issue exists. You can sort of work around it by deactivating channel 1/2 audio pass through on the device…
In my report I wrote: “The string retuning module is allowing audio from USB audio Ch. 1 or 2 (when the Audio Device is active in another chain) to join the hex signals on 3-8.”
But, I think it’s actually any hex module. Please correct me if I’m wrong.
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I admit I don’t really understand the problem…
For me, everything is working properly. The Hex module is picking up the correct signals, and I can access output 1 of the VG-800 on the MG3 audio channel. In fact, I have the impression that only output 1 of the VG-800 is being sent to channel 1 of the MG3Hex, in mono.
What are the malfunctions you’re noticing?
In this dual path setup (both retuned hex feeds: A to Amp Sim/B to Synth) the Ch. 1/2 audio (main mix) from the SY-1000 is being processed by the first MG3 chain. It’s very clear to hear because I’m using standard tunings on the SY-1000 main path.
The Audio Device module does not need to be present for this to occur.
Notably, I am not using the SY-1000 as the audio out monitor in MG3 Hex, so it is certainly not a routing mistake on my part. However, deactivating INST 1 in the SY-1000 solves the problem – but that means you lose your lovely SY-1000 tones 
It’s difficult for me to understand what’s going on in this type of setup because I don’t have a SY-1000.
Does the SY-1000 have 10 external USB signals like the VG-800?
However, I think that only channel 1 of the SY-1000 is sent to the chain 1 of the MG3Hex.
As for the rest, only Ole can tell us, for this SY-1000, which USB signals he selects by default for the implementation of the Hex module.
-Ch 1-2 carry a selectable signal (various options);
-Ch 3-8 carry dry per-string audio.
It’s not about the SY-1000. It’s just that audio from 1-2 is being allowed in along with/alongside Ch 3-8 on the hex audio chain where it’s not useful.
I’m using it too. It’s subtle but helpful to tame the dry string tone.
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@lpspecial - I’m a bit confused about this. What’s the simplest patch I can make that reproduce this unwanted chan1&2 behaviour? Can you drop a simple patch here?
Ascend VPU 1.1.1 is still available: Ascend VPU v1.1.1 – Cycfi Research
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@Lpspecial I tried your patch on the VG-800 and, indeed, I get the same result as you: we can clearly hear the VG-800 outputs 1 & 2 in addition to the VG-800 string outputs!
With this setup, the chains with Audio/MIDI conversion in Hex mode are functional, but we can clearly hear the very attenuated outputs 1 & 2 in addition to the synth signal…
There is definitely a bug there.
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It still runs for me under rosetta on Mac OS but I agree it’s cumbersome to use.
I had also made a suggestion in this direction a long time ago, but so far no reaction from @JamO
Edit: you can find it here:
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I think think the very simplest way to do something like this is just to introduce a general polyphonic pitch envelope (which can be scaled, curved, inverted, etc), alongside the others (strike, pressure, brightness, etc…). So in the cello example you would connect a pitch connector to a CC controlling bow placement in the cello module.
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does pressure work differently in mg3 with a bowed instrument?
if so, it seems to me that a bowed instrument with independent string pickups would be the ultimate midi controller.
I think the @lpspecial suggestion of adding keytracking could be a great idea. You could borrow from the Roli Equator interface and just place the envelope adjustment curve with handles on the keyboard visualizer, and have the access point for us to be in the modulator as an envelope there. It could look like any of these, depending on how many envelopes you want to use:
And from there we can connect the Keytracking envelope to whatever parameter in a synth we like to affect with where we are playing pitchwise.
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