Full-Duplex Communication Systems with Loudspeaker Arrays and Microphone Arrays

Buchner H, Spors S, Kellermann W, Rabenstein R (2002)

Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Publication year: 2002

Publisher: Institute of Electrical and Electronics Engineers Inc.

Book Volume: 1

Pages Range: 509-512

Article Number: 1035830

Event location: Lausanne CH

ISBN: 0780373049

DOI: 10.1109/ICME.2002.1035830

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.

Authors with CRIS profile

Walter Kellermann Professur für Signalverarbeitung Rudolf Rabenstein Lehrstuhl für Multimediakommunikation und Signalverarbeitung (LMS)

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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