Details
| Original language | English |
|---|---|
| Title of host publication | 29th European Signal Processing Conference, EUSIPCO 2021 - Proceedings |
| Pages | 161-165 |
| Number of pages | 5 |
| ISBN (electronic) | 9789082797060 |
| Publication status | Published - 2021 |
| Event | 29th European Signal Processing Conference, EUSIPCO 2021 - Dublin, Ireland Duration: 23 Aug 2021 → 27 Aug 2021 |
Publication series
| Name | European Signal Processing Conference |
|---|---|
| Volume | 2021-August |
| ISSN (Print) | 2219-5491 |
| ISSN (electronic) | 2076-1465 |
Abstract
The concept of wave-domain adaptive filtering (WDAF) is a powerful technique in the field of massive-multichannel acoustic system identification. By using fundamental solutions of the wave-equation for signal representation the wave-domain system model exhibits desirable properties in suitable setups. This allows efficient approximations of the model or can improve the convergence of an adaptive filter. The applicability of the WDAF technique to higher-order Ambisonics systems and three-dimensional wave fields was often mentioned in literature, but conducted experiments were always limited to two-dimensional setups. This paper investigates the WDAF technique in a new context of practical Ambisonics systems, aiming at acoustic echo cancellation for immersive telepresence systems. Experiments are conducted with simulated and measured room impulse responses in ideal and non-ideal loudspeaker setups. Furthermore different Ambisonics decoding methods are investigated and compared. The transferability of previously proposed WDAF approaches is examined and the results show the general applicability of these approaches, but with some limitations for real-world problems.
Keywords
- AEC, HOA, Immersive telepresence, Wave-domain adaptive filtering
ASJC Scopus subject areas
- Computer Science(all)
- Signal Processing
- Engineering(all)
- Electrical and Electronic Engineering
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29th European Signal Processing Conference, EUSIPCO 2021 - Proceedings. 2021. p. 161-165 (European Signal Processing Conference; Vol. 2021-August).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Towards Wave-Domain Adaptive Filtering for Multichannel Acoustic Echo Cancellation in Higher-Order Ambisonics Systems
AU - Nophut, Marcel
AU - Hupke, Robert
AU - Preihs, Stephan
AU - Peissig, Jürgen
N1 - Funding Information: This research was funded by the German Federal Ministry of Economic Affairs and Energy under the Grant Number 01MD18010G.
PY - 2021
Y1 - 2021
N2 - The concept of wave-domain adaptive filtering (WDAF) is a powerful technique in the field of massive-multichannel acoustic system identification. By using fundamental solutions of the wave-equation for signal representation the wave-domain system model exhibits desirable properties in suitable setups. This allows efficient approximations of the model or can improve the convergence of an adaptive filter. The applicability of the WDAF technique to higher-order Ambisonics systems and three-dimensional wave fields was often mentioned in literature, but conducted experiments were always limited to two-dimensional setups. This paper investigates the WDAF technique in a new context of practical Ambisonics systems, aiming at acoustic echo cancellation for immersive telepresence systems. Experiments are conducted with simulated and measured room impulse responses in ideal and non-ideal loudspeaker setups. Furthermore different Ambisonics decoding methods are investigated and compared. The transferability of previously proposed WDAF approaches is examined and the results show the general applicability of these approaches, but with some limitations for real-world problems.
AB - The concept of wave-domain adaptive filtering (WDAF) is a powerful technique in the field of massive-multichannel acoustic system identification. By using fundamental solutions of the wave-equation for signal representation the wave-domain system model exhibits desirable properties in suitable setups. This allows efficient approximations of the model or can improve the convergence of an adaptive filter. The applicability of the WDAF technique to higher-order Ambisonics systems and three-dimensional wave fields was often mentioned in literature, but conducted experiments were always limited to two-dimensional setups. This paper investigates the WDAF technique in a new context of practical Ambisonics systems, aiming at acoustic echo cancellation for immersive telepresence systems. Experiments are conducted with simulated and measured room impulse responses in ideal and non-ideal loudspeaker setups. Furthermore different Ambisonics decoding methods are investigated and compared. The transferability of previously proposed WDAF approaches is examined and the results show the general applicability of these approaches, but with some limitations for real-world problems.
KW - AEC
KW - HOA
KW - Immersive telepresence
KW - Wave-domain adaptive filtering
UR - http://www.scopus.com/inward/record.url?scp=85123214053&partnerID=8YFLogxK
U2 - 10.23919/EUSIPCO54536.2021.9616323
DO - 10.23919/EUSIPCO54536.2021.9616323
M3 - Conference contribution
AN - SCOPUS:85123214053
SN - 978-1-6654-0900-1
T3 - European Signal Processing Conference
SP - 161
EP - 165
BT - 29th European Signal Processing Conference, EUSIPCO 2021 - Proceedings
T2 - 29th European Signal Processing Conference, EUSIPCO 2021
Y2 - 23 August 2021 through 27 August 2021
ER -