If you enter a room to see someone dancing their heart out in silence, no headphones in sight, don't be alarmed. They may be ...

A 3D-printed acoustic metasurface developed by researchers at Penn State could open new possibilities for targeted audio in ...

What if you could send sound directly to a single person in a crowded room, without anyone else hearing it? This isn’t a scene from a sci-fi movie, it’s the reality of a new concept called the “sound ...

Parametric acoustic waves exploit the nonlinear interaction of high-frequency ultrasonic beams in a medium to produce low-frequency sound with exceptionally narrow beamwidths. By transmitting two ...