Evaluation of Speech Intelligibility and Sound Localization Abilities With Hearing Aids Using Binaural Wireless Technology
Wireless synchronization of the digital signal processing (DSP) features between two hearing aids in a bilateral hearing aid fitting is a fairly new technology. This technology is expected to preserve the differences in time and intensity between the two ears by co-ordinating the bilateral DSP featu...
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| Published in | Audiology research Vol. 3; no. 1; p. e1 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
| Published |
Italy
PAGEPress Publications, Pavia, Italy
02.01.2013
MDPI AG |
| Subjects | |
| Online Access | Get full text |
| ISSN | 2039-4349 2039-4330 2039-4349 |
| DOI | 10.4081/audiores.2013.e1 |
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| Abstract | Wireless synchronization of the digital signal processing (DSP) features between two hearing aids in a bilateral hearing aid fitting is a fairly new technology. This technology is expected to preserve the differences in time and intensity between the two ears by co-ordinating the bilateral DSP features such as multichannel compression, noise reduction, and adaptive directionality. The purpose of this study was to evaluate the benefits of wireless communication as implemented in two commercially available hearing aids. More specifically, this study measured speech intelligibility and sound localization abilities of normal hearing and hearing impaired listeners using bilateral hearing aids with wireless synchronization of multichannel Wide Dynamic Range Compression (WDRC). Twenty subjects participated; 8 had normal hearing and 12 had bilaterally symmetrical sensorineural hearing loss. Each individual completed the Hearing in Noise Test (HINT) and a sound localization test with two types of stimuli. No specific benefit from wireless WDRC synchronization was observed for the HINT; however, hearing impaired listeners had better localization with the wireless synchronization. Binaural wireless technology in hearing aids may improve localization abilities although the possible effect appears to be small at the initial fitting. With adaptation, the hearing aids with synchronized signal processing may lead to an improvement in localization and speech intelligibility. Further research is required to demonstrate the effect of adaptation to the hearing aids with synchronized signal processing on different aspects of auditory performance. |
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| AbstractList | Wireless synchronization of the digital signal processing (DSP) features between two hearing aids in a bilateral hearing aid fitting is a fairly new technology. This technology is expected to preserve the differences in time and intensity between the two ears by co-ordinating the bilateral DSP features such as multichannel compression, noise reduction, and adaptive directionality. The purpose of this study was to evaluate the benefits of wireless communication as implemented in two commercially available hearing aids. More specifically, this study measured speech intelligibility and sound localization abilities of normal hearing and hearing impaired listeners using bilateral hearing aids with wireless synchronization of multichannel Wide Dynamic Range Compression (WDRC). Twenty subjects participated; 8 had normal hearing and 12 had bilaterally symmetrical sensorineural hearing loss. Each individual completed the Hearing in Noise Test (HINT) and a sound localization test with two types of stimuli. No specific benefit from wireless WDRC synchronization was observed for the HINT; however, hearing impaired listeners had better localization with the wireless synchronization. Binaural wireless technology in hearing aids may improve localization abilities although the possible effect appears to be small at the initial fitting. With adaptation, the hearing aids with synchronized signal processing may lead to an improvement in localization and speech intelligibility. Further research is required to demonstrate the effect of adaptation to the hearing aids with synchronized signal processing on different aspects of auditory performance. |
| Author | Cheesman, Margaret Ibrahim, Iman Macpherson, Ewan Parsa, Vijay |
| AuthorAffiliation | 1 Faculty of Health Sciences, Western University , London, Canada 2 National Centre for Audiology, Western University , London, Canada |
| AuthorAffiliation_xml | – name: 1 Faculty of Health Sciences, Western University , London, Canada – name: 2 National Centre for Audiology, Western University , London, Canada |
| Author_xml | – sequence: 1 givenname: Iman surname: Ibrahim fullname: Ibrahim, Iman – sequence: 2 givenname: Vijay surname: Parsa fullname: Parsa, Vijay – sequence: 3 givenname: Ewan surname: Macpherson fullname: Macpherson, Ewan – sequence: 4 givenname: Margaret surname: Cheesman fullname: Cheesman, Margaret |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/26557339$$D View this record in MEDLINE/PubMed |
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| Keywords | binaural hearing hearing aids sound localization wireless technology speech intelligibility |
| Language | English |
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| Notes | Contributions: II, study design, data collection, data analysis and manuscript preparation; VP, study design, software development, data analysis, and manuscript preparation; EM, data analysis, software development and manuscript revision; MC, study design, data analysis and manuscript revision. Conflict of interests: the authors report no conflict of interests. |
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| Title | Evaluation of Speech Intelligibility and Sound Localization Abilities With Hearing Aids Using Binaural Wireless Technology |
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