[Salmonfisher11]

Beamforming is standard in modern conference room gear. It's being used for making a video focus on the active speaker and optimizing his audio.

Have a look at the "Meeting Owl" for example.

It works great up to a limit (around 5m) then you will need additional microphones closer to the speaker.

[sitkack]

XMOS targets this space specifically.

https://www.xmos.com/ a descendant of the Transputer.