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

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

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

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

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

According to the researchers, neither beam is audible by itself - it is the intersection of the beams that create a local ...

While ultrasonic cleaning might sound a bit like the “sonic shower” from Star Trek, this is actually one case where the futuristic-sounding technology predates its use in Sci-Fi. Ultrasonic ...

Researchers have developed a new technique to make glass water-repellent, a feature that could improve safety in vehicles, reduce cleaning costs for buildings and enhance filtration systems. The ...

An innovation in audio technology might make this a reality, creating personal sound zones through ultrasonic waves.

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