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

PLoS ONE, ISSN: 1932-6203, Vol: 20, Issue: 1, Page: e0317266
2025
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Ecole Centrale de Lyon Reports Findings in Pain and Central Nervous System (Binaural speech intelligibility for combinations of noise, reverberation, and hearing-aid signal processing)

2025 JAN 24 (NewsRx) -- By a News Reporter-Staff News Editor at Electronics Daily -- New research on Pain and Central Nervous System is the

Article 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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