Good post. I can certainly see how this could one day lead to something usable, particularly office environments.
I wonder how badly the sound distorts if someone walks between the source and the listener.
I guess it's like the Whisper Dish concept, see the link below. I've had a go at one of these and it is quite a good way to refocus sound at a distance while it being inaudible inbetween. Someone walking across between the dishes only break part of the wave because it's so diffuse at that location.
https://youtu.be/lC-47_ESeUw
I wonder how badly the sound distorts if someone walks between the source and the listener.
I guess it's like the Whisper Dish concept, see the link below. I've had a go at one of these and it is quite a good way to refocus sound at a distance while it being inaudible inbetween. Someone walking across between the dishes only break part of the wave because it's so diffuse at that location.
https://youtu.be/lC-47_ESeUw