Abstract
| Original language | English |
|---|---|
| Journal | Asilomar Conference on Signals, Systems and Computers. Conference Record |
| Pages (from-to) | 556-560 |
| ISSN | 1058-6393 |
| DOIs | |
| 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 |
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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
Cite this
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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
ER -