Negative impacts from latency masked by noise in simulated beamforming.

Those experiencing hearing loss face severe challenges in perceiving speech in noisy situations such as a busy restaurant or cafe. There are many factors contributing to this deficit including decreased audibility, reduced frequency resolution, and decline in temporal synchrony across the auditory s...

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Autores principales:	Jordan A Drew, W Owen Brimijoin
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9395a5d8650c450cb04ed0815db181e2
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id	oai:doaj.org-article:9395a5d8650c450cb04ed0815db181e2
record_format	dspace
spelling	oai:doaj.org-article:9395a5d8650c450cb04ed0815db181e22021-12-02T20:09:43ZNegative impacts from latency masked by noise in simulated beamforming.1932-620310.1371/journal.pone.0254119https://doaj.org/article/9395a5d8650c450cb04ed0815db181e22021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0254119https://doaj.org/toc/1932-6203Those experiencing hearing loss face severe challenges in perceiving speech in noisy situations such as a busy restaurant or cafe. There are many factors contributing to this deficit including decreased audibility, reduced frequency resolution, and decline in temporal synchrony across the auditory system. Some hearing assistive devices implement beamforming in which multiple microphones are used in combination to attenuate surrounding noise while the target speaker is left unattenuated. In increasingly challenging auditory environments, more complex beamforming algorithms are required, which increases the processing time needed to provide a useful signal-to-noise ratio of the target speech. This study investigated whether the benefits from signal enhancement from beamforming are outweighed by the negative impacts on perception from an increase in latency between the direct acoustic signal and the digitally enhanced signal. The hypothesis for this study is that an increase in latency between the two identical speech signals would decrease intelligibility of the speech signal. Using 3 gain / latency pairs from a beamforming simulation previously completed in lab, perceptual thresholds of SNR from a simulated use case were obtained from normal hearing participants. No significant differences were detected between the 3 conditions. When presented with 2 copies of the same speech signal presented at varying gain / latency pairs in a noisy environment, any negative intelligibility effects from latency are masked by the noise. These results allow for more lenient restrictions for limiting processing delays in hearing assistive devices.Jordan A DrewW Owen BrimijoinPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0254119 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jordan A Drew W Owen Brimijoin Negative impacts from latency masked by noise in simulated beamforming.
description	Those experiencing hearing loss face severe challenges in perceiving speech in noisy situations such as a busy restaurant or cafe. There are many factors contributing to this deficit including decreased audibility, reduced frequency resolution, and decline in temporal synchrony across the auditory system. Some hearing assistive devices implement beamforming in which multiple microphones are used in combination to attenuate surrounding noise while the target speaker is left unattenuated. In increasingly challenging auditory environments, more complex beamforming algorithms are required, which increases the processing time needed to provide a useful signal-to-noise ratio of the target speech. This study investigated whether the benefits from signal enhancement from beamforming are outweighed by the negative impacts on perception from an increase in latency between the direct acoustic signal and the digitally enhanced signal. The hypothesis for this study is that an increase in latency between the two identical speech signals would decrease intelligibility of the speech signal. Using 3 gain / latency pairs from a beamforming simulation previously completed in lab, perceptual thresholds of SNR from a simulated use case were obtained from normal hearing participants. No significant differences were detected between the 3 conditions. When presented with 2 copies of the same speech signal presented at varying gain / latency pairs in a noisy environment, any negative intelligibility effects from latency are masked by the noise. These results allow for more lenient restrictions for limiting processing delays in hearing assistive devices.
format	article
author	Jordan A Drew W Owen Brimijoin
author_facet	Jordan A Drew W Owen Brimijoin
author_sort	Jordan A Drew
title	Negative impacts from latency masked by noise in simulated beamforming.
title_short	Negative impacts from latency masked by noise in simulated beamforming.
title_full	Negative impacts from latency masked by noise in simulated beamforming.
title_fullStr	Negative impacts from latency masked by noise in simulated beamforming.
title_full_unstemmed	Negative impacts from latency masked by noise in simulated beamforming.
title_sort	negative impacts from latency masked by noise in simulated beamforming.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/9395a5d8650c450cb04ed0815db181e2
work_keys_str_mv	AT jordanadrew negativeimpactsfromlatencymaskedbynoiseinsimulatedbeamforming AT wowenbrimijoin negativeimpactsfromlatencymaskedbynoiseinsimulatedbeamforming
_version_	1718375077495439360

Negative impacts from latency masked by noise in simulated beamforming.

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