Twin ultrasound transducers create highly focused audio Curved sound waves aren't audible if you're not in the sweet spot ...

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 ...

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

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 ...

An innovative and non-toxic process using ultrasonic sound waves can alter the surface of glass, making it either hydrophobic ...

Learn about localized audio spots, dubbed "audible enclaves," which can be placed with pinpoint accuracy while remaining ...

The researchers created localized pockets of sound, called “audible enclaves.” These enclaves are like small, invisible sound ...

Jia-Xin "Jay" Zhong, a postdoctoral scholar of acoustics at Penn State, used a dummy with microphones in its ears to measure the presence or absence of sound along an ultrasonic trajectory.

By combining ultrasound with a concept called nonlinear acoustics, you can create sound that stays silent until it reaches a ...

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, ...

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