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Authors: Douglas L. Jones ; Michael E. Lockwood ; Albert S. Feng and Bruce C. Wheeler

Affiliation: Beckman Institute, University of Illinois at Urbana-Champaign, United States

Keyword(s): Beamforming, hearing aids, biologically inspired beamformers, cocktail party.

Related Ontology Subjects/Areas/Topics: Acoustic Signal Processing ; Biomedical Engineering ; Biomedical Signal Processing

Abstract: Many biological hearing systems perform much better than existing signal processing systems in natural settings. Two biologically inspired adaptive beamformers, one mimicking the mammalian dual-delay-line localization system, show SNR gains in challenging cocktail-party scenes substantially exceeding those of conventional adaptive beamformers. A “zero-aperture” acoustic vector sensor array inspired by the parasitoid fly Ormia ochracea and accompanying algorithms show even better performance in source recovery than the binaural beamformers, as well as the ability to localize multiple nonstationary sources to within two degrees. New experimental studies of the performance of the biologically inspired beamformers in reverberation show substantial reduction in performance in reverberant conditions that hardly affect human performance, thus indicating that the biologically inspired algorithms are still incomplete.

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Paper citation in several formats:
L. Jones, D.; E. Lockwood, M.; S. Feng, A. and C. Wheeler, B. (2008). BIOLOGICALLY INSPIRED BEAMFORMING WITH SMALL ACOUSTIC ARRAYS. In Proceedings of the First International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2008) - Volume 2: BIOSIGNALS; ISBN 978-989-8111-18-0; ISSN 2184-4305, SciTePress, pages 128-135. DOI: 10.5220/0001068801280135

@conference{biosignals08,
author={Douglas {L. Jones}. and Michael {E. Lockwood}. and Albert {S. Feng}. and Bruce {C. Wheeler}.},
title={BIOLOGICALLY INSPIRED BEAMFORMING WITH SMALL ACOUSTIC ARRAYS},
booktitle={Proceedings of the First International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2008) - Volume 2: BIOSIGNALS},
year={2008},
pages={128-135},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001068801280135},
isbn={978-989-8111-18-0},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the First International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2008) - Volume 2: BIOSIGNALS
TI - BIOLOGICALLY INSPIRED BEAMFORMING WITH SMALL ACOUSTIC ARRAYS
SN - 978-989-8111-18-0
IS - 2184-4305
AU - L. Jones, D.
AU - E. Lockwood, M.
AU - S. Feng, A.
AU - C. Wheeler, B.
PY - 2008
SP - 128
EP - 135
DO - 10.5220/0001068801280135
PB - SciTePress

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