Ultrasonic sounds are high-frequency sound waves that exceed 20,000 hertz, a range far beyond what the human ear can detect.

Ultrasonic beams fired through a 3D-printed metasurface can create localized pockets of sound that are inaudible to ...

Researchers have created customized 'audio enclaves' that work like a virtual headset where only the listener can hear the ...

The team of researchers, led by Yun Jing, professor of acoustics, Penn State College of Engineering, precisely narrowed where ...

It may someday be possible to listen to a favorite podcast or song without disturbing the people around you, even without ...

A new invention has proven that audio can successfully be transmitted directly to a listener's ears without being audible to others around.

The team tested the tech in a room with echoes to show that it can function in the actual world, such as in classrooms, cars, ...

Here are five creatures with superior hearing abilities that can detect and interpret ultrasonic frequencies: Dogs can hear ...

Imagine being able to listen to your favorite podcast or song without disturbing others—without using headphones. A team of researchers at Penn State has made a breakthrough in audio engineering that ...

Check out the Avnet element14 challenge In Reach! It's an "Ultrasonic Sensor Sensing Challenge" for building smart mowers and ...

The ultrasonic features and the clinical manifestations of the two groups were retrospectively analyzed, with an emphasis on the following parameters: onset age, gender (male/female) ratio ...