Researchers harness ultrasound to create isolated pockets of sound only you can hear in a crowd

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Submitted ⁨⁨11⁩ ⁨months⁩ ago⁩ by ⁨BrikoX@lemmy.zip⁩ to ⁨technology@lemmy.zip⁩

https://www.techspot.com/news/107228-researchers-designed-way-deliver-sound-privately-one-person.html

The key is intersecting ultrasonic frequencies to produce audible sound

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