Richard Upchurch began his Brooklyn-based sound recorder business by making a handcrafted audio device for his nephew. A few more were requested by his teachers and then he started selling them online ...

Investigators seeking answers about what caused an Alaska Airlines plane’s near-catastrophic midflight blowout on Jan. 5 are working without a key piece of evidence: audio from the flight’s black box ...

Australia is looking into equipping soldiers with a personal "black box" that would act as a combination data recorder and emergency beacon. Start-up telecommunications company Myriota and wearable ...