Acoustic Feedback and Echo Cancellation Strategies for Multiple-Microphone and Single-Loudspeaker Systems

Meng Guo; Thomas Bo Elmedyb; Søren Holdt Jensen; Jesper Jensen

doi:10.1109/ACSSC.2011.6190063

Acoustic Feedback and Echo Cancellation Strategies for Multiple-Microphone and Single-Loudspeaker Systems

Meng Guo, Thomas Bo Elmedyb, Søren Holdt Jensen, Jesper Jensen

Department of Electronic Systems

Research output: Contribution to journal › Conference article in Journal › Research › peer-review

1 Citation (Scopus)

Abstract

Acoustic feedback/echo cancellation in a multiple-microphone and single-loudspeaker system is often carried out using a cancellation filter for each microphone channel, and the filters are adaptively estimated, independently of each other. In this work, we consider another strategy by estimating all the cancellation filters jointly and in this way exploit information from all microphone channels. We determine the statistical system behavior for the joint estimation strategy in terms of the convergence rate and steady-state behavior across time and frequency. We assess if an improved cancellation performance is achievable compared to the independent estimation strategy. Furthermore, we relate the joint estimation strategy to a stereophonic echo cancellation system and provide analytic expressions for its system behavior.

Original language	English
Journal	Asilomar Conference on Signals, Systems and Computers. Conference Record
Pages (from-to)	556-560
ISSN	1058-6393
DOIs	https://doi.org/10.1109/ACSSC.2011.6190063
Publication status	Published - 6 Nov 2011
Event	Asilomar Conference on Signals, Systems and computers, Nov. 6-9, 2011 - Pacific Grove, United States Duration: 6 Nov 2011 → 9 Nov 2011

Seminar

Seminar	Asilomar Conference on Signals, Systems and computers, Nov. 6-9, 2011
Country	United States
City	Pacific Grove
Period	06/11/2011 → 09/11/2011

Bibliographical note

Please note that the 2011 Asilomar conference was created as a seminar in the PURE system. The same conference for the previous years were correctly created as conference.

Keywords

Adaptive filters
Open-loop transfer function
Estimation strategy
Joint estimation
Stereophonic echo problem

Access to Document

10.1109/ACSSC.2011.6190063

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6190063

Cite this

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title = "Acoustic Feedback and Echo Cancellation Strategies for Multiple-Microphone and Single-Loudspeaker Systems",

abstract = "Acoustic feedback/echo cancellation in a multiple-microphone and single-loudspeaker system is often carried out using a cancellation filter for each microphone channel, and the filters are adaptively estimated, independently of each other. In this work, we consider another strategy by estimating all the cancellation filters jointly and in this way exploit information from all microphone channels. We determine the statistical system behavior for the joint estimation strategy in terms of the convergence rate and steady-state behavior across time and frequency. We assess if an improved cancellation performance is achievable compared to the independent estimation strategy. Furthermore, we relate the joint estimation strategy to a stereophonic echo cancellation system and provide analytic expressions for its system behavior.",

keywords = "Adaptive filters, Open-loop transfer function, Estimation strategy, Joint estimation, Stereophonic echo problem",

author = "Meng Guo and Elmedyb, {Thomas Bo} and Jensen, {S{\o}ren Holdt} and Jesper Jensen",

note = "Please note that the 2011 Asilomar conference was created as a seminar in the PURE system. The same conference for the previous years were correctly created as conference.; Asilomar Conference on Signals, Systems and computers, Nov. 6-9, 2011 ; Conference date: 06-11-2011 Through 09-11-2011",

year = "2011",

month = nov,

day = "6",

doi = "10.1109/ACSSC.2011.6190063",

language = "English",

pages = "556--560",

journal = "Asilomar Conference on Signals, Systems and Computers. Conference Record",

issn = "1058-6393",

publisher = "I E E E Computer Society",

}

Acoustic Feedback and Echo Cancellation Strategies for Multiple-Microphone and Single-Loudspeaker Systems. / Guo, Meng; Elmedyb, Thomas Bo; Jensen, Søren Holdt; Jensen, Jesper.

In: Asilomar Conference on Signals, Systems and Computers. Conference Record, 06.11.2011, p. 556-560.

Research output: Contribution to journal › Conference article in Journal › Research › peer-review

TY - GEN

T1 - Acoustic Feedback and Echo Cancellation Strategies for Multiple-Microphone and Single-Loudspeaker Systems

AU - Guo, Meng

AU - Elmedyb, Thomas Bo

AU - Jensen, Søren Holdt

AU - Jensen, Jesper

N1 - Please note that the 2011 Asilomar conference was created as a seminar in the PURE system. The same conference for the previous years were correctly created as conference.

PY - 2011/11/6

Y1 - 2011/11/6

N2 - Acoustic feedback/echo cancellation in a multiple-microphone and single-loudspeaker system is often carried out using a cancellation filter for each microphone channel, and the filters are adaptively estimated, independently of each other. In this work, we consider another strategy by estimating all the cancellation filters jointly and in this way exploit information from all microphone channels. We determine the statistical system behavior for the joint estimation strategy in terms of the convergence rate and steady-state behavior across time and frequency. We assess if an improved cancellation performance is achievable compared to the independent estimation strategy. Furthermore, we relate the joint estimation strategy to a stereophonic echo cancellation system and provide analytic expressions for its system behavior.

AB - Acoustic feedback/echo cancellation in a multiple-microphone and single-loudspeaker system is often carried out using a cancellation filter for each microphone channel, and the filters are adaptively estimated, independently of each other. In this work, we consider another strategy by estimating all the cancellation filters jointly and in this way exploit information from all microphone channels. We determine the statistical system behavior for the joint estimation strategy in terms of the convergence rate and steady-state behavior across time and frequency. We assess if an improved cancellation performance is achievable compared to the independent estimation strategy. Furthermore, we relate the joint estimation strategy to a stereophonic echo cancellation system and provide analytic expressions for its system behavior.

KW - Adaptive filters

KW - Open-loop transfer function

KW - Estimation strategy

KW - Joint estimation

KW - Stereophonic echo problem

U2 - 10.1109/ACSSC.2011.6190063

DO - 10.1109/ACSSC.2011.6190063

M3 - Conference article in Journal

SP - 556

EP - 560

JO - Asilomar Conference on Signals, Systems and Computers. Conference Record

JF - Asilomar Conference on Signals, Systems and Computers. Conference Record

SN - 1058-6393

T2 - Asilomar Conference on Signals, Systems and computers, Nov. 6-9, 2011

Y2 - 6 November 2011 through 9 November 2011

ER -

Acoustic Feedback and Echo Cancellation Strategies for Multiple-Microphone and Single-Loudspeaker Systems

Abstract

Seminar

Bibliographical note

Keywords

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