By listening continuously to the songs of baleen whales, researchers have uncovered striking differences in how humpback and ...

For centuries poets and writers have imagined the depths of the ocean as eerily quiet. But scientists now know that the oceans, and especially coastal areas, are full of sound from both natural and ...

A research team has successfully recorded the sound of methane bubbles from the seafloor off the Oregon coast using a hydrophone, opening the door to using acoustics to identify—and perhaps ...

Researchers at MIT Lincoln Laboratory have developed a first-of-its-kind hydrophone built around a simple, commercially available microphone. The device, leveraging a common microfabrication process ...

A research team has successfully recorded the sound of methane bubbles from the seafloor off the Oregon coast using a hydrophone, opening the door to using acoustics to identify – and perhaps quantify ...

The world of whales is an acoustic one. Beneath the water’s surface, visibility is limited. Chirps, clicks, bellows and the like are the language of cetaceans. But what’s being communicated with these ...

A 3D-printed piezoelectric metamaterial uses topology-driven charge transport to locate underwater sound sources from a single compact transducer, replacing bulky hydrophone arrays. (Nanowerk ...

NEWPORT, R.I., 20 May 2015. U.S. Navy submarine sonar experts needed hydrophones for a variety of submarine sonar systems. They found their solution from Massa Products Corp. in Hingham, Mass.

We study marine animals using a variety of technologies to record underwater sounds, including archival passive acoustic recordings (orange), real-time passive acoustic data collection (green), and ...

People often think that the underwater world is silent. In fact, numerous marine organisms use sound for communication, reproduction, and to seek prey. The hydrophone pictured here is located within ...