Full-Duplex Communication Systems with Loudspeaker Arrays and Microphone Arrays

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Buchner H, Spors S, Kellermann W, Rabenstein R
Publisher: Institute of Electrical and Electronics Engineers Inc.
Publication year: 2002
Volume: 1
Pages range: 509-512
ISBN: 0780373049


Abstract


For high-quality multimedia communication systems, such as teleconferencing, or tele-teaching (especially of music), multichannel sound reproduction is highly desirable. While current approaches still rely on a restrained listening area, the sweet spot, a volume solution for a large listening space is offered by the wave field synthesis (WFS) method, where arrays of loudspeakers generate a prespecified sound field. On the recording side of the two-way systems, the use of microphone arrays is an effective approach to cope with undesired signal components in the receiving room. However, before full-duplex communication can be deployed, efficient approaches to the acoustic echo cancellation (AEC) problem in this challenging scenario have to be found. We investigate different options for system integration, after a brief discussion of the current state of the art. We then present a first real-time solution on a regular PC platform, based on an efficient AEC for MIMO (multi-input and multi-output) systems in the frequency-domain.



FAU Authors / FAU Editors

Kellermann, Walter Prof. Dr.-Ing.
Professur für Nachrichtentechnik
Rabenstein, Rudolf Prof. Dr.
Lehrstuhl für Multimediakommunikation und Signalverarbeitung


How to cite

APA:
Buchner, H., Spors, S., Kellermann, W., & Rabenstein, R. (2002). Full-Duplex Communication Systems with Loudspeaker Arrays and Microphone Arrays. In Proceedings of the 2002 IEEE International Conference on Multimedia and Expo, ICME 2002 (pp. 509-512). Lausanne, CH: Institute of Electrical and Electronics Engineers Inc..

MLA:
Buchner, Herbert, et al. "Full-Duplex Communication Systems with Loudspeaker Arrays and Microphone Arrays." Proceedings of the 2002 IEEE International Conference on Multimedia and Expo, ICME 2002, Lausanne Institute of Electrical and Electronics Engineers Inc., 2002. 509-512.

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Last updated on 2019-03-06 at 07:09