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

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.