Artists like Max Cooper have already been conducting rather cool live experiments with 3D spatial sound, with Cooper himself offering the following explanation of the next-level concept:

“Sound can come from the middle of the room, as well as the edges—from anywhere. You can walk past the sounds. You can actually walk toward the sound, find it, walk past it, and then find another sound… it gives the impression a sound is coming from any point in space, essentially.”

The Digital Nature Group from Japan’s University of Tsukuba is currently developing a new speaker setup using their own 3D spatial sound technology, which they term the Holographic Whisper. This technology allows you to transmit sound that can be heard only if you’re situated within a certain area.

Its developers claimn their new tech allows for audio to be transmitted “more flexibly and more precisely” than with current 3D-spatialized sound techniques.

“We employ an ultrasonic phased array as a holographic acoustic generator to focus ultrasound at arbitrary three-dimensional positions. The sound pressure at the ultrasonic focal points is sufficiently high to radiate audible sound based on the self-demodulation effect in air. Consequently, the ultrasonic focal points act as audible sound sources.”

Watch the demonstration above, and find out more over at the Holographic Whisper site.


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