Create a focused speaker so your music targets only the listener. That demodulates at 40 kilohertz, with an H-bridge and ...

Surface acoustic wave (SAW) filters already fill our mobile devices, but a new breakthrough finds a way to make them smaller, potentially leading to even more compact devices.

The first sound recordings from NASA’s Perseverance Mars rover have made it to Earth. Now, years after sci-fi films have shaped expectations, we finally know how space lasers sound — and it’s not what ...

Several police departments across America are planning to try a new device that uses focused sound, turned way up. These so-called non-lethal... Focused Sound 'Laser' for Crowd Control Crowd control ...

You can hear sound, of course, but what if you could see it with a laser? That’s what [Goosetopherson] thought about, and thus a new project that you can see in the video below was born. The heart of ...

In February of 2020 a team of researchers in Antarctica did something magical: They threw chunks of ice down super-deep holes in the frozen ground and recorded the subsequent laser-like sounds. Now, a ...

The world of home entertainment is about to change forever with the introduction of the AWOL Theater and ThunderBeat 4.2.2 surround sound system. Combining state-of-the-art visuals and unparalleled ...

The first sound recordings from NASA’s Perseverance Mars rover have made it to Earth. Now, years after sci-fi films have shaped expectations, we finally know how space lasers sound — and it’s not what ...