Sperm whale 'clicks' help scientists understand behaviour

Scientists have recorded thousands of hours of "clicks" that sperm whales make to forage for food and communicate, helping them better understand the behaviour of one of the Southern Ocean's key predators.

Scientists capture sounds of volcanic thunder

Researchers report in a new study that they've documented rumblings of volcanic thunder for the first time, a feat considered nearly impossible by many volcanologists.

Recordings spout secrets behind blue whale behavior

Researchers are using underwater microphones to interpret and characterize the calls of blue whales swimming through Southern California's oceans, revealing new insights into the behavior of these endangered marine mammals, ...

Underwater acoustic localization of marine mammals and vehicles

Researchers at IMDEA Networks (Spain) in collaboration with University of Haifa (Israel) have developed an underwater acoustic system for the localization of marine mammals, underwater vehicles and other sound sources in ...

Amorphous metallic glass for high-sensitivity MEMS microphones

Advanced microphones using microelectromechanical systems (MEMS) are capable of supporting new user interactions with "smart" devices, like chatting with Apple's Siri, or Amazon's Alexa. The key to achieving the high sensitivity ...

Protecting your smartphone from voice impersonators

It's a lot easier to talk to a smartphone than to try to type instructions on its keyboard. This is particularly true when a person is trying to log in to a device or a system: Few people would choose to type a long, complex ...

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