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CC BY-NC-ND 4.0 · Int Arch Otorhinolaryngol 2023; 27(02): e302-e308
DOI: 10.1055/s-0042-1744170
Original Research

Bluetooth Coupling in Hearing Aids: Effect on Audiovisual Speech Recognition and Quality Rating of Compressed Speech in Older Individuals with Sloping Hearing Loss

Hemanth Narayan Shetty 
1   Department of Audiology, JSS Institute of Speech and Hearing, Mysuru, Karnataka, India
,
Shubhaganga Dhrruva Kumar 
2   Department of Speech and Hearing, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal
,
Srikar Vijayasarathy 
1   Department of Audiology, JSS Institute of Speech and Hearing, Mysuru, Karnataka, India
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Abstract

Introduction Older individuals often report that they find it difficulty in enjoying watching television since they find it hard to follow the rapid intensity variations, and voice changes from scene to scene.

Objective The present study investigated the effect of coupling the hearing aid with the television via Bluetooth on audiovisual speech recognition and quality rating of compressed speech in older individuals with hearing loss.

Method Twenty participants in the age range of 60 to 75 years who had moderate to moderately severe sloping sensorineural hearing loss were bilaterally fitted with digital receiver in the canal hearing aids. The hearing aid was coupled with a television via Bluetooth using a streamer. The video recorded stimuli were presented at 65 dB SPL at normal rate, 35% compression and 45% compression conditions. Speech recognition scores and quality ratings were obtained for each condition with and without the Bluetooth streamer connected to the hearing aids.

Results Speech recognition scores were significantly better with Bluetooth coupling compared with conventional hearing aid use at 40% compressed speech rate. The quality was also rated higher in almost all parameters across speech rates when Bluetooth was used.

Conclusions The improved clarity and nullification of room reverberation offered by Bluetooth coupling can potentially compensate for the age-related temporal processing deficit contributing to ease of listening.

Keywords

speech perception - signal-to-noise ratio - aging - Bluetooth


Publikationsverlauf

Eingereicht: 03. September 2021

Angenommen: 26. Januar 2022

Artikel online veröffentlicht:
28. April 2023

© 2023. Fundação Otorrinolaringologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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