I want to use an audio interface as a mixer replacement for live use. The setup I have in mind is one with lots of sources which go directly into the interface and route them programatically to a few outputs, including some effect send loops that will make another round trip through connected hardware devices. I would like to do this "standalone" without having to go through some DAW or other software.

Therefor I need to control the mixer with MIDI or OSC. I would have chosen the UA Apollo platform for the high quality realtime DSP, but unfortunately UA still doesn't support any form of remote control over their UAD mixer.

I am happy to read that TotalMix does have an open architecture when it comes to remote control, and I am about to purchase the UFX+ for this reason, but I am wondering if there are any limitations I should be aware of.

I am a software developer too, and ultimately I would like to have full control over volume, panning, sends and preferably even routing.

For example I could write an algorithm that pans a mono source across 4 outputs for a quad surround setup. Would this kind of control be possible, or is the rate / resolution at which the control messages are interpreted not high enough to allow this kind of automation to be smooth and without artefacts?