Very good questions and ideas!
Here are some thoughts:
1) I try to avoid calling the ‘Nuvo serial control’ protocol on RS232 for NuvoNet as it is not at all the same as on the RS485 used by all the devices connected to the EZ-port and labeled ‘NuvoNet’ by Nuvo. NuvoNet is very different:
An IP-RS485 adapter will not help without some intelligence to form a bridge between the two protocols. I do not know if such intelligence is to be found in the MCS Nuvobridge software, but I really doubt it. What we have seen it produce is Nuvo serial protocol. A bridge between MCS protocol and Nuvo serial protocol.
2) For the time being, the NNA is the necessary bridge between (extended) Nuvo serial protocol for e.g. menus and NuvoNet protocol. At least until we have managed to create our own bridge. It can’t be that hard, but still hard enough! Hopefully someone cracks NuvoNet.
Furthermore rs232 is used between the NNA and the GC/EG for basic transport control using standard Nuvo serial protocol. That could be done over IP.
3) the Nuvo card in the MPS4 is actually two combined: a USB based sound card from Attero tech and a NNA from Nuvo. Although I have never tried, it should be possible to run them separately; or just disable the Attero card. NNAs are also found as NV-MPs.
4) For higher sound fidelity I see three paths forward for MPS4 owners:
- use the spdif output. Hopefully
succeeds and can tell us more
- plug in a (USB) sound card directly on the board and unplug the Nuvo card’s USB connection while keeping the serial one.
- plug in an external USB sound card.
Our license may or may not set some limitations on the amount and type of outputs installed. Still unclear (see previous posts on this topic).
I am no expert but may have picked up that newer sound cards rely on usb 3.0 for better sound. That logic could be the reason for the V2 Nuvo card to be connected to a PCI slot and not USB, but I am really out of my league here.
A second note is that I have no clue regarding which granularity the GC is working at. At some point, the sound card’s precision becomes irrelevant. I understand that this can be tested by plugging in a source to the GC and increasing the bit depth to a point when the sound disappears. Have never tried.