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A new adaptive filtering algorithm for stereophonic acoustic echo cancellation

机译:一种新的立体声回声消除自适应滤波算法

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This paper addresses the stereophonic acoustic echo cancelation (SAEC) problem in teleconferencing system by adaptive filtering algorithm. We propose a new stereophonic version of the fast normalized least mean square (FNLMS) algorithm. The proposed algorithm is an extended version of the FNLMS algorithm to the stereophonic case with important improvement of the prediction part that becomes stable in the stereophonic case. The basic idea behind the proposed stereophonic fast normalized least mean square (SFNLMS) algorithm is the normalization of the predictor parameter by the inputs variance for each channel. Simulation results of a comparison between the proposed SFNLMS algorithm and the classical SNLMS version in term of convergence speed and stability are presented. (C) 2018 Elsevier Ltd. All rights reserved.
机译:通过自适应滤波算法解决了电话会议系统中的立体声回声消除(SAEC)问题。我们提出了快速归一化最小均方(FNLMS)算法的新立体声版本。所提出的算法是FNLMS算法对立体声情况的扩展版本,对预测部分的重要改进使其在立体声情况下变得稳定。提出的立体声快速归一化最小均方(SFNLMS)算法背后的基本思想是通过每个通道的输入方差对预测参数进行归一化。给出了所提出的SFNLMS算法与经典SNLMS版本在收敛速度和稳定性方面进行比较的仿真结果。 (C)2018 Elsevier Ltd.保留所有权利。

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