A microphone array is, quite simply, multiple microphones operating in tandem. This is shown to have many applications:
- Systems for extracting voice input from ambient noise (notably, telephones, voice entry systems, hearing aids)
- Surround Sound and related technologies
- Locating objects by sound
- High-fidelity original recordings
There are some implementation of microphones arrays that are really big. In 1994 there was implemented a 512 microphones array.