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Yes you can, with an ultrasonic transmitter you can create sound in specific spots or that only a specific listener can hear.
by zaarn 6y ago
Yes 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)