Microphone arrays are composed of several microphones located at fixed relative positions from each other. They use knowledge of the microphone locations to predict the delays observed in signals coming from different directions. This allows two different possibilities: finding the position of a sound source (for instance to aim a video-conference camera at the speaker), and reducing the noise of the captured signal by enhancing the sensitivity of the microphone array in a particular direction. This is achieved by adequately combining the signals captured by the different microphones in the array.
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(2009). Microphone Arrays. In: Li, S.Z., Jain, A. (eds) Encyclopedia of Biometrics. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-73003-5_481
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DOI: https://doi.org/10.1007/978-0-387-73003-5_481
Publisher Name: Springer, Boston, MA
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