Microphone array

A microphone array is an set of multiple microphones operating in tandem. This is shown to have many applications:

• Systems for extracting voice input from ambient noise (notably telephones, speech recognition systems, hearing aids)
• Surround Sound and related technologies
• Locating objects by sound
• High fidelity original recordings

Typically, an array is made up of omnidirectional microphones distributed about the perimeter of a space, linked to a computer that records and interprets the results into a coherent form.

There are some implementation of microphones arrays that are really big. In Massachusetts Institute of Technology an array of 1020 microphones[1] have been built.