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  • 标题:Frequency-Domain Adaptive Algorithm for Network Echo Cancellation in VoIP
  • 本地全文:下载
  • 作者:Xiang (Shawn) Lin ; Andy W. H. Khong ; Milŏs Doroslovăcki
  • 期刊名称:EURASIP Journal on Audio, Speech, and Music Processing
  • 印刷版ISSN:1687-4714
  • 电子版ISSN:1687-4722
  • 出版年度:2008
  • 卷号:2008
  • DOI:10.1155/2008/156960
  • 出版社:Hindawi Publishing Corporation
  • 摘要:

    We propose a new low complexity, low delay, and fast converging frequency-domain adaptive algorithm for network echo cancellation in VoIP exploiting MMax and sparse partial (SP) tap-selection criteria in the frequency domain. We incorporate these tap-selection techniques into the multidelay filtering (MDF) algorithm in order to mitigate the delay inherent in frequency-domain algorithms. We illustrate two such approaches and discuss their tradeoff between convergence performance and computational complexity. Simulation results show an improvement in convergence rate for the proposed algorithm over MDF and significantly reduced complexity. The proposed algorithm achieves a convergence performance close to that of the recently proposed, but substantially more complex improved proportionate MDF (IPMDF) algorithm.

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