Alan W. Archer-Boyd
Biomimetic direction of arrival estimation for resolving front-back confusions in hearing aids
Archer-Boyd, Alan W.; Whitmer, William M.; Brimijoin, W. Owen; Soraghan, John J.
Authors
WILLIAM WHITMER bill.whitmer@nottingham.ac.uk
Senior Investigator Scientist
W. Owen Brimijoin
John J. Soraghan
Abstract
Sound sources at the same angle in front or behind a two-microphone array (e.g., bilateral hearing aids) produce the same time delay and two estimates for the direction of arrival: A front-back confusion. The auditory system can resolve this issue using head movements. To resolve front-back confusion for hearing-aid algorithms, head movement was measured using an inertial sensor. Successive time-delay estimates between the microphones are shifted clockwise and counterclockwise by the head movement between estimates and aggregated in two histograms. The histogram with the largest peak after multiple estimates predicted the correct hemifield for the source, eliminating the front-back confusions.
Citation
Archer-Boyd, A. W., Whitmer, W. M., Brimijoin, W. O., & Soraghan, J. J. (2015). Biomimetic direction of arrival estimation for resolving front-back confusions in hearing aids. Journal of the Acoustical Society of America, 137(5), doi:10.1121/1.4918297
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 26, 2015 |
Online Publication Date | May 6, 2015 |
Publication Date | May 6, 2015 |
Deposit Date | Oct 24, 2017 |
Publisher | Acoustical Society of America |
Peer Reviewed | Peer Reviewed |
Volume | 137 |
Issue | 5 |
Article Number | EL360 |
DOI | https://doi.org/10.1121/1.4918297 |
Public URL | https://nottingham-repository.worktribe.com/output/1111274 |
Publisher URL | https://asa.scitation.org/doi/citedby/10.1121/1.4918297 |
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