When [Electron Impressions] used a powerful ultrasonic array to project a narrow beam of sound toward a target, he described ...

Audfly's ultrasonic directional sound technology integrated with digital advertising displays, delivering targeted audio to viewers while minimizing noise pollution. Audfly's ultrasonic directional ...

The mating calls of the katydid, a large insect, are ultrasonic, beyond the audible limit of human hearing. What if we could hear them? That’s the focus behind a collaboration between the abstract ...

(Nanowerk News) It will soon be possible to measure ultrasonic sound using water, air, light and nanotechnology – over a hundred times more accurately than with existing sensors. This innovative ...

Imagine that your smartphone could talk directly to an ATM to securely authenticate your identity without you having to touch it. What if your phone could use sound from the speaker system in the mall ...