[brudgers]

I think the issue is, at least in part, that a lot of audio gear is existing. I mean if a recording studio was built around a million dollar digital console in 2006, there aren’t a lot of business cases for replacement when the engineering solved the problem years ago and when the hardware for the solutions is already at hand.

My engineering intuition is that millisecond latencies would be easier to solve because there the hardware is easier to build than sub-millisecond delays, and because millisecond delays are common for keeping microphones in phase.

A standard solution for avoiding AD to DA latency is an analog mixer because it provides a signal path running at close to the speed of light.

YMMV.