Stereophonic acoustic echo cancellation: An overview and recent solutions

S. Makino

doi:10.1250/ast.22.325

Stereophonic acoustic echo cancellation: An overview and recent solutions

S. Makino^*

^*Corresponding author for this work

Research output: Contribution to journal › Review article › peer-review

10 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	325-333
Number of pages	9
Journal	Acoustical Science and Technology
Volume	22
Issue number	5
DOIs	https://doi.org/10.1250/ast.22.325
Publication status	Published - 2001
Externally published	Yes

Keywords

Adaptive algorithm
Adaptive filter
Echo cancellation
Stereo system
Teleconferencing system

ASJC Scopus subject areas

Acoustics and Ultrasonics

Access to Document

10.1250/ast.22.325

Cite this

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abstract = "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.",

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AB - 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.

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KW - Adaptive filter

KW - Echo cancellation

KW - Stereo system

KW - Teleconferencing system

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Stereophonic acoustic echo cancellation: An overview and recent solutions

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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