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An array would allow, presumably, for beamforming. Aim the sound precisely at the listeners’ ears. Stick a camera on each speaker that identifies faces and beam
by ttul 6y ago
An array would allow, presumably, for beamforming. Aim the sound precisely at the listeners’ ears. Stick a camera on each speaker that identifies faces and beams sound accordingly, leaving those not in the room in near total silence.
- megous 6y agoIs that even possible with large part of the hearable spectrum having wavelengths in meters? How precise would that be?
- seryoiupfurds 6y agoCould you transmit ultrasonic carrier waves that intermodulate at the right spot?
- zaarn 6y agoYes you can, with an ultrasonic transmitter you can create sound in specific spots or that only a specific listener can hear.
- bashinator 6y agoHolosonics.com, or a lot less comfortably, [LRAD](https://en.wikipedia.org/wiki/Long_Range_Acoustic_Device https://en.wikipedia.org/wiki/Long_Range_Acoustic_Device)
- bashinator 6y agoIt's absolutely possible, and has been implemented by companies like holosonics.com. The basic idea is that you do phase cancellation of ultrasonic frequencies to produce audio in the hearable range.
- cjsawyer 6y agoRemember that xbox patent that would charge video watchers per person instead of per rental?
- willis936 6y agoImpractical with multipath. You would have better luck targeting people to not hear any sound than you would making it silent everywhere but one location. Unless you turned all walls into speakers, which would be a fun hobby project. You could also skip all of these issues if you really want Hi-Fi and just used sealed IEMs.