Double-Talk Detection Algorithm Based on the l_2 Norm |
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引用本文: | Wang Shao-wei,Zhu Qiu-ping ,Yang Yong School of Electronic Information,Wuhan University,Wuhan 430072,Hubei,China. Double-Talk Detection Algorithm Based on the l_2 Norm[J]. 武汉大学学报:自然科学英文版, 2004, 9(1) |
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作者姓名: | Wang Shao-wei Zhu Qiu-ping Yang Yong School of Electronic Information Wuhan University Wuhan 430072 Hubei China |
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作者单位: | Wang Shao-wei,Zhu Qiu-ping ,Yang Yong School of Electronic Information,Wuhan University,Wuhan 430072,Hubei,China |
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基金项目: | SupportedbythetheNationalHighTechnologyDe velopmentofChina (863 30 6 ZT0 5) |
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摘 要: | 0 IntroductionInmultimediacommunicationsystems,thecomplexcouplingbetweenaloudspeakerandamicrophonecanproduceechowhichwillseriouslycutdownthecommunicationquality .Soitiscrucialtocanceltheechowithsomeeffectivemethods.Acousticechocancellers(AEC)areusuallyusedtoeliminatelongdelayechointerferences.Typicalapplicationsareinlongdistancetelephonecircuitsorinterminalswherelongprocessingdelayexists.Fig .1showsthebasicstructureofanadaptivevoiceechocanceller.Fig .1 Thebasicstructureofanadaptivevoiceec…
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Double-Talk Detection Algorithm Based on the l2 Norm |
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Abstract: | Echo canceller generally needs a double-talk detector which is used to keep the adaptive filter from diverging in the appearance of near-end speech. In this paper we adopt a new double-talk detection algorithm based on l 2 norm to detect the existence of near-end speech in an acoustic echo canceller. We analyze this algorithm from the point of view of functional analysis and point out that the proposed double-talk detection algorithm has the same performance as the classic one in a finite Banach space. The remarkable feature of this algorithm is its higher accuracy and better computation complexity. The fine properties of this algorithm are confirmed by computer simulation and the application in a multimedia communication system. |
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Keywords: | acoustic echo cancellation double-talk detection l 2 norm adaptive FIR |
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