In many applications, such as hands-free telephony and smart environments, there is a need to distinguish voice from background noise and reverberation. A proposed system computes an information-theoretic coherency between multiple microphones in order to detect near-field speech. The system performance was compared to that of a reference case in both simulations and experiments. While all such systems degrade with increasing noise and reverberation, the proposed system proved to be more robust under adverse conditions.

Authors: Talantzis, Fotios; Constantinides, Anthony G.
Affiliations: Autonomic and Grid Computing Group, Athens Information Technology, Athens, Greece; Dept. of Electrical & Electronic Engineering, Imperial College London, London, UK(See document for exact affiliation information.)
JAES Volume 57 Issue 11 pp. 937-950; November 2009
Publication Date: November 23, 2009

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