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Adaptation Mode Controller for Adaptive Microphone Array System  

Jung Yang-Won (연세대학교 전기전자공학과 미디어 통신 신호처리연구실)
Kang Hong-Goo (연세대학교 전기전자공학과 미디어 통신 신호처리연구실)
Lee Chungyong (연세대학교 전기전자공학과 미디어 통신 신호처리연구실)
Hwang Youngsoo (관동대학교 전자정보통신기술공학부)
Youn Dae Hee (관동대학교 전자정보통신기술공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.11C, 2004 , pp. 1573-1580 More about this Journal
Abstract
In this paper, an adaptation mode controller for adaptive microphone array system is proposed for high-quality speech acquisition in real environments. To ensure proper adaptation of the adaptive array algorithm, the proposed adaptation mode controller uses not only temporal information, but also spatial information. The proposed adaptation mode controller is constructed with two processing stages: an initialization stage and a running stage. In the initialization stage, a sound source localization technique is adopted, and a signal correlation characteristic is used in the running stage. For the adaptive may algorithm, a generalized sidelobe canceller with an adaptive blocking matrix is used. The proposed adaptation mode controller can be used even when the adaptive blocking matrix is not adapted, and is much stable than the power ratio method. The proposed algorithm is evaluated in real environment, and simulation results show 13dB SINR improvement with the speaker sitting 2m distance from the may.
Keywords
Microphone Array; Adaptive Array Algorithm, Adaptation Mode Controller; Generalized Sidelobe Canceller; Speech Enhancement;
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