A Simple Modification to Facilitate Robust Generalized Sidelobe Canceller for Hearing Aids

Meng Guo, Jan Mark De Haan, Jesper Jensen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

This work focuses on an adaptive beamformer in a hearing aid application using a generalized sidelobe canceller structure (GSC). In this application, the constraint and blocking matrices in the GSC structure are specifically designed using an estimate of the transfer functions between the target source and the microphones to ensure optimal beamformer performance. We show that, in practice, the GSC always-unintentionally-attenuates the target sound in a special but realistic situation where all signals, including the target and noise signals, originate from the look direction reflected by the look vector. This happens because, in practice, the blocking matrix in the GSC structure is non-ideal. We introduce a simple modification to the GSC structure, which solves the problem of undesired target signal attenuation in situations where all signals originate from the look direction. Furthermore, this modification can also prevent desired signals, originating from positions spatially close to the look direction, to be removed. We also show that the solution has no impact on other acoustic situations.
Original languageEnglish
Title of host publication2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
PublisherIEEE
Publication date2015
Pages300 -304
ISBN (Electronic)978-1-4673-6997-8
DOIs
Publication statusPublished - 2015
Externally publishedYes
Event40th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2015 - Brisbane, Australia
Duration: 19 Apr 201524 Apr 2015
Conference number: 2015

Conference

Conference40th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2015
Number2015
CountryAustralia
CityBrisbane
Period19/04/201524/04/2015
SeriesI E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings
ISSN1520-6149

Fingerprint

Hearing aids
Microphones
Transfer functions
Acoustics
Acoustic waves

Cite this

Guo, M., Haan, J. M. D., & Jensen, J. (2015). A Simple Modification to Facilitate Robust Generalized Sidelobe Canceller for Hearing Aids. In 2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (pp. 300 -304). IEEE. I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings https://doi.org/10.1109/ICASSP.2015.7177979
Guo, Meng ; Haan, Jan Mark De ; Jensen, Jesper. / A Simple Modification to Facilitate Robust Generalized Sidelobe Canceller for Hearing Aids. 2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2015. pp. 300 -304 (I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings).
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Guo, M, Haan, JMD & Jensen, J 2015, A Simple Modification to Facilitate Robust Generalized Sidelobe Canceller for Hearing Aids. in 2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings, pp. 300 -304, 40th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2015, Brisbane, Australia, 19/04/2015. https://doi.org/10.1109/ICASSP.2015.7177979

A Simple Modification to Facilitate Robust Generalized Sidelobe Canceller for Hearing Aids. / Guo, Meng; Haan, Jan Mark De; Jensen, Jesper.

2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2015. p. 300 -304.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

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Guo M, Haan JMD, Jensen J. A Simple Modification to Facilitate Robust Generalized Sidelobe Canceller for Hearing Aids. In 2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE. 2015. p. 300 -304. (I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings). https://doi.org/10.1109/ICASSP.2015.7177979