A display-mounted high-quality stereo microphone array for high-definition videophone system

Authors:
Y. Hioka;M. Okamoto;K. Kobayashi;Y. Haneda;A. Kataoka
Affiliations:
NTT Cyber Space Labs., NTT Corp., Tokyo;-;-;-;-
Venue:
IEEE Transactions on Consumer Electronics
Year:
2008

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TV-based caring videophone system for the elderly in the smart home environment

Journal of Electrical and Computer Engineering - Special issue on Sustainable Energy and its Novel Technologies

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Abstract

A stereo microphone array developed for a high-definition videophone system is presented. The array consists of a pair of fixed beamformers to collect sounds in stereo clearly while suppressing the far-end talk emitted from the loudspeakers to decrease the undesirable influence of acoustic echo. Both the objective and subjective experimental results demonstrate that the microphone array satisfies the required specifications, which have not been achieved by several conventional schemes.