A microphone that listens with light

A new sensor will help to make microphones hypersensitive: "Think of traditional videoconference equipment. Several people are sitting around the table, but the microphone has been placed where its sound reception is less than optimal. With technology of this sort, a microphone will be able to "see" where the sound comes from, pick up the voice of the person speaking, and filter out other sources of noise in the room," explains one of the researchers.



http://www.sciencedaily.com/releases/2013/06/130618101616.htm?+Energy+News+--+Acoustics)