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Multi-Channel Hybrid Acoustic Echo Canceller with Microphone/Speaker Array
Shigenobu Minami,Hirokazu Tanaka,Miki Haseyama 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7
An audio system which integrates an acoustic echo canceller (AEC) and Microphone/Speaker (MIC/SP) array is proposed. To cope with both miss-convergence of AEC due to strong cross-channel correlation (CCC) in stereo sound and echo path change by beam-forming function in MIC/SP array, Multi-Channel Hybrid AEC (MCH-AEC) which is based on PST-EC[10] method is extended to be applicable to MIC/SP array system. Since the MCH-AEC dominates system performance, CCC and acoustic echo cancellation performances (ERLE) of the method are evaluated by using computer simulations.