Stereophonic acoustic echo cancellation: An overview and recent solutions

S. Makino*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

10 Citations (Scopus)


The fundamental problems of stereophonic acoustic echo cancellation were discussed and the recent solutions were reviewed. The stereo echo cancellation was achieved by linearly combining two monoaural echo cancellers. A duofilter control system including a continually running adaptive filter and a fixed filter was used for double talk control. A second order stereo projection algorithm was used in the adaptive filter and a stereo switch was also implemented.

Original languageEnglish
Pages (from-to)325-333
Number of pages9
JournalAcoustical Science and Technology
Issue number5
Publication statusPublished - 2001
Externally publishedYes


  • Adaptive algorithm
  • Adaptive filter
  • Echo cancellation
  • Stereo system
  • Teleconferencing system

ASJC Scopus subject areas

  • Acoustics and Ultrasonics


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