Acoustics

While seabed-located cameras are great for tasks such as monitoring wildlife, powering them can be challenging. That's where a new MIT-designed camera comes in, as it requires no battery, plus it wirelessly transmits its photos through the water.

When it comes to communicating with one another while underwater, scuba divers typically use either hand signals or writing boards … both of which have limitations. Soon, however, they could be utilizing an app on their existing smartphone.

Traditional computer chips run on electricity, while the emerging photonic chips use light. Now, scientists at Harvard have demonstrated a new kind of chip that transmits data in the form of sound waves.

Zipline has developed and patented an AI-driven safety system it says allows autonomous drones to detect and avoid other aircraft and drones up to 2 km away in all directions, using a light, cheap and robust microphone array. Will it satisfy the FAA?

eVTOL makers say these electric air taxis will be so much quieter than helicopters that they'll be able to put hundreds of them in the air without annoying city residents. Well, let's see – Joby Aviation and NASA have released acoustic test figures.

The hoverfly has an extraordinary ability to see and track moving objects in very low light, and Australian researchers have replicated its signal-to-noise-boosting vision systems to process sound data, detecting and tracking drones up to 4 km away.

If you can get past the strange looks, the Lava Me 3 has a carbon fiber sound all its own, and some wicked new digital smarts. A touchscreen interface gives you access to stackable effects, loopers, tuners, high-quality portable recording and more.

Toward the beginning of 2019, Fender introduced a new take on the electro-acoustic guitar called the Acoustasonic Telecaster. Now for the fourth model in the series, the company has introduced a more refined, versatile and accessible version.

Whether you're a seasoned picker or just need some practice, taking your acoustic guitar with you on your travels is not always easy. That's where the Minicorda comes in, which is small enough to throw in a backpack yet promises a full-bodied sound.

Iconic guitar brand Gibson has launched a new family of acoustic guitars called the Generation Collection, each featuring a port in the upper side that started life as a 1964 concept blueprint, and has now been refined for today's players.

Because both bats and moths are nocturnal, bats use echolocation to zero in on the insects when hunting them in the dark. A new study, however, suggests that some moths have evolved special wingtips to avoid becoming a meal.

Scientists in Japan have broken new ground when it comes to using sound waves for levitation, by demonstrating for the first time how the technology can be used to lift small polystyrene balls off of a rigid surface.