Stereophonic Acoustic Echo Canceler Based on Two-Filter Scheme(<Special Section>Papers Selected from the 21st Symposium on Signal Processing)
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概要
- 論文の詳細を見る
This paper presents a novel stereophonic acoustic echo canceling scheme without preprocessing. To accurately estimate echo path keeping the high level of performance in echo erasing, this scheme uses two filters, of which one filter is utilized as a guideline which does not erases echo but helps updating of the other filter, which actually erases echo. In addition, we propose a new filter dividing technique to apply to the filter divide scheme, and utilize this as the guideline. Numerical examples demonstrate that the proposed scheme improves the convergence behavior compared to conventional methods both in system mismatch (i.e., normalized coefficients error) and Echo Return Loss Enhancement (ERLE).
- 社団法人電子情報通信学会の論文
- 2007-08-01
著者
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Nishihara Akinori
Department Of Human System Science Tokyo Institute Of Technology
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Nishihara Akinori
Department Communications And Integrated Systems Tokyo Institute Of Technology
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MURAKOSHI Noriaki
Department of Human System Science, Tokyo Institute of Technology
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Murakoshi Noriaki
Department Of Human System Science Tokyo Institute Of Technology:(present Office)hitachi Information
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