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Dual-Channel Speech Enhancement by Superdirective Beamforming

EURASIP Journal on Advances in Signal Processing volume 2006, Article number: 063297 (2006) Cite this article

Abstract

In this contribution, a dual-channel input-output speech enhancement system is introduced. The proposed algorithm is an adaptation of the well-known superdirective beamformer including postfiltering to the binaural application. In contrast to conventional beamformer processing, the proposed system outputs enhanced stereo signals while preserving the important interaural amplitude and phase differences of the original signal. Instrumental performance evaluations in a real environment with multiple speech sources indicate that the proposed computational efficient spectral weighting system can achieve significant attenuation of speech interferers while maintaining a high speech quality of the target signal.

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  1. Institute of Communication Systems and Data Processing, RWTH Aachen University, Aachen, 52056, Germany

    Thomas Lotter & Peter Vary

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  1. Thomas Lotter
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  2. Peter Vary
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Correspondence to Thomas Lotter.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Lotter, T., Vary, P. Dual-Channel Speech Enhancement by Superdirective Beamforming. EURASIP J. Adv. Signal Process. 2006, 063297 (2006). https://doi.org/10.1155/ASP/2006/63297

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