Researchers have created crazy new headphone-free music tech that can beam sound waves directly into your ears.

A team of researchers at Penn State College of Engineering have been fine-tuning a technology that allows them to create ...

While it’s not radar, subbing in ultrasonic sensors is how [Dzl] built ... resultant echoes down in the human-audible range; they sound more like honks than pings, but it’s still pretty ...

But a hackier way would be to build a parametric speaker that focuses soundwaves into a narrow beam like [Shane] did with this ultrasonic sound gun. As the directivity of a soundwave depends on ...

In a nutshell Penn State researchers created “audible enclaves,” localized sound spots that only targeted listeners can hear, using intersecting ultrasonic beams that bend around obstacles like human ...

Could a multi-billion dollar industry about to go bust? That’s the road ahead if scientists can refine their promising new ...

When the beams intersect, a phenomenon known as difference frequency generation occurs, creating an audible sound. "When two ultrasonic beams of slightly different frequencies, such as 40 kHz and ...

Crucially, we designed ultrasonic beams that can bend on their own. Normally, sound waves travel in straight lines unless something blocks or reflects them. However, by using acoustic metasurfaces ...

Researchers at Penn State College of Engineering have developed localized sound zones known as audible enclaves.

IISc researchers develop alternative technique to test blood glucose with photo-acoustic sensing: Nandita Vijayasimha, Bengaluru Thursday, March 27, 2025, 08:00 Hrs [IST] The Indi ...