I heard about VocalZoom at the Embedded Online Conference, who are trying a hardware approach to solving the cocktail party effect. Basically they use lasers a

I heard about VocalZoom at the Embedded Online Conference, who are trying a hardware approach to solving the cocktail party effect. Basically they use lasers and directional microphones. Seems like it could work for a conference call in a meeting room, but not sure how helpful it would be for a party. https://patents.google.com/patent/US8286493 https://patents.google.com/patent/US8286493 I'm more interested in the SRAY: a directional loudspeaker, which could avoid the need for so much ambient background noise. Also useful for alarm clocks, I suppose. https://www.indiegogo.com/projects/sray-world-s-smallest-directional-speaker https://www.indiegogo.com/projects/sray-world-s-smallest-dir...