Comal

Via: https://x.com/davidtlang/status/2008332309049602398 - There is a restaurant in downtown Berkeley called Comal, which has good Mexican food. I recommend it.

I suggest you go, if you can, to observe for yourself that they have SOLVED the pesky restaurant noise problem.
You can hear everyone at your table clearly, without anyone straining their voice, all while the whole place maintains a lively background buzz of conversation and ambiance.
It's a technical and design marvel. I hope they figure out how to make these tools cheap and ubiquitous.