Binaural speech intelligibility for combinations of noise, reverberation, and hearing-aid signal processing.

Binaural speech intelligibility in rooms is a complex process that is affected by many factors including room acoustics, hearing loss, and hearing aid (HA) signal processing. Intelligibility is evaluated in this paper for a simulated room combined with a simulated hearing aid. The test conditions co...

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Main Authors: James M Kates, Mathieu Lavandier, Ramesh Kumar Muralimanohar, Emily M H Lundberg, Kathryn H Arehart
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0317266
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author James M Kates
Mathieu Lavandier
Ramesh Kumar Muralimanohar
Emily M H Lundberg
Kathryn H Arehart
author_facet James M Kates
Mathieu Lavandier
Ramesh Kumar Muralimanohar
Emily M H Lundberg
Kathryn H Arehart
author_sort James M Kates
collection DOAJ
description Binaural speech intelligibility in rooms is a complex process that is affected by many factors including room acoustics, hearing loss, and hearing aid (HA) signal processing. Intelligibility is evaluated in this paper for a simulated room combined with a simulated hearing aid. The test conditions comprise three spatial configurations of the speech and noise sources, simulated anechoic and concert hall acoustics, three amounts of multitalker babble interference, the hearing status of the listeners, and three degrees of simulated HA processing provided to compensate for the noise and/or hearing loss. The impact of these factors and their interactions is considered for normal-hearing (NH) and hearing-impaired (HI) listeners for sentence stimuli. Both listener groups showed a significant reduction in intelligibility as the signal-to-noise ratio (SNR) decreased, and showed a reduction in intelligibility in reverberation when compared to anechoic listening. There was no significant improvement in intelligibility for the NH group for the noise suppression algorithm used here, and no significant improvement in intelligibility for the HI group for more advanced HA processing algorithms as opposed to linear amplification in either of the two acoustic spaces or at any of the three SNRs.
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spelling doaj-art-ff27e5bc3f6045788d41a5ceb5bb7c352025-02-05T05:31:24ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01201e031726610.1371/journal.pone.0317266Binaural speech intelligibility for combinations of noise, reverberation, and hearing-aid signal processing.James M KatesMathieu LavandierRamesh Kumar MuralimanoharEmily M H LundbergKathryn H ArehartBinaural speech intelligibility in rooms is a complex process that is affected by many factors including room acoustics, hearing loss, and hearing aid (HA) signal processing. Intelligibility is evaluated in this paper for a simulated room combined with a simulated hearing aid. The test conditions comprise three spatial configurations of the speech and noise sources, simulated anechoic and concert hall acoustics, three amounts of multitalker babble interference, the hearing status of the listeners, and three degrees of simulated HA processing provided to compensate for the noise and/or hearing loss. The impact of these factors and their interactions is considered for normal-hearing (NH) and hearing-impaired (HI) listeners for sentence stimuli. Both listener groups showed a significant reduction in intelligibility as the signal-to-noise ratio (SNR) decreased, and showed a reduction in intelligibility in reverberation when compared to anechoic listening. There was no significant improvement in intelligibility for the NH group for the noise suppression algorithm used here, and no significant improvement in intelligibility for the HI group for more advanced HA processing algorithms as opposed to linear amplification in either of the two acoustic spaces or at any of the three SNRs.https://doi.org/10.1371/journal.pone.0317266
spellingShingle James M Kates
Mathieu Lavandier
Ramesh Kumar Muralimanohar
Emily M H Lundberg
Kathryn H Arehart
Binaural speech intelligibility for combinations of noise, reverberation, and hearing-aid signal processing.
PLoS ONE
title Binaural speech intelligibility for combinations of noise, reverberation, and hearing-aid signal processing.
title_full Binaural speech intelligibility for combinations of noise, reverberation, and hearing-aid signal processing.
title_fullStr Binaural speech intelligibility for combinations of noise, reverberation, and hearing-aid signal processing.
title_full_unstemmed Binaural speech intelligibility for combinations of noise, reverberation, and hearing-aid signal processing.
title_short Binaural speech intelligibility for combinations of noise, reverberation, and hearing-aid signal processing.
title_sort binaural speech intelligibility for combinations of noise reverberation and hearing aid signal processing
url https://doi.org/10.1371/journal.pone.0317266
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