Researchers harness ultrasound to create isolated pockets of sound only you can hear in a crowd
The key is intersecting ultrasonic frequencies to produce audible sound
Ultrasonic articles
Voice-controlled systems like Alexa and Siri can be hijacked by ultrasonic commands
The sounds are inaudible to humans
Ticketmaster is using smartphone-based ultrasonic audio to get attendees into events quicker
Could this be the future of event tickets?