Efficient fast stereo acoustic echo cancellation based on pairwise optimal weight realization technique

Masahiro Yukawa, Noriaki Murakoshi, Isao Yamada

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14 Citations (Scopus)


In stereophonic acoustic echo cancellation (SAEC) problem, fast and accurate tracking of echo path is strongly required for stable echo cancellation. In this paper, we propose a class of efficient fast SAEC schemes with linear computational complexity (with respect to filter length). The proposed schemes are based on pairwise optimal weight realization (POWER) technique, thus realizing a "best" strategy (in the sense of pairwise and worst-case optimization) to use multiple-state information obtained by preprocessing. Numerical examples demonstrate that the proposed schemes significantly improve the convergence behavior compared with conventional methods in terms of system mismatch as well as echo return loss enhancement (ERLE).

Original languageEnglish
Article number84797
JournalEurasip Journal on Applied Signal Processing
Publication statusPublished - 2006 May 15


ASJC Scopus subject areas

  • Signal Processing
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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