'We essentially created a virtual headset': Scientists transmit inaudible sound using ultrasonic beams to create single person 'audio enclaves'
A team of researchers at Penn State College of Engineering have been fine-tuning a technology that allows them to create ...
BBC2y
The human ear and sound waves
We can't hear these sound waves, but when they reflect off different parts of the body, they create echoes that are picked up by the probe and turned into an image called an ultrasound scan.
The Conversation13d
Researchers created sound that can bend itself through space, reaching only your ear in a crowd
Similar to how an optical lens bends light, acoustic metasurfaces change the shape of the path of sound waves. By precisely controlling the phase of the ultrasound waves, we create curved sound ...