I understood correctly that are two innovations here? The face-tracking and the ability to direct sound precisely. I would be very interested in the sound dire

I understood correctly that are two innovations here? The face-tracking and the ability to direct sound precisely. I would be very interested in the sound direction solely. My use case is to project sound to me, in a bed, without my wife, sleeping next to me, hearing a thing. I like to sleep with music and she doesn't. A directed alarm would be nice too. Is this technology already available some where?