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Digital processing technology for bone-anchored hearing aids: randomised comparison of two devices in hearing aid users with mixed or conductive hearing loss

Published online by Cambridge University Press:  14 February 2014

P Hill-Feltham ,
S A Roberts  and
R Gladdis
P Hill-Feltham*
Affiliation:
Audiology Department, Manchester Royal Infirmary, Manchester, UK
S A Roberts
Affiliation:
Centre for Biostatistics, Institute of Population Health, Manchester, UK
R Gladdis
Affiliation:
Audiology Department, Manchester Royal Infirmary, Manchester, UK
*
Address for correspondence: Dr P Hill-Feltham, Audiology Department, Manchester Royal Infirmary, Oxford Rd, Manchester M13 9WL, UK E-mail: Penelope.feltham@cmft.nhs.uk
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Abstract

Objective:

This study compared the performance of two new bone-anchored hearing aids with older bone-anchored hearing aids that were not fully digital.

Methods:

Fourteen experienced bone-anchored hearing aid users participated in this cross-over study. Performance of their existing bone-anchored hearing aid was assessed using speech-in-noise testing and questionnaires. Participants were then fitted with either a Ponto Pro or a BP100 device. After four weeks of use with each new device, the same assessments were repeated.

Results:

Speech-in-noise testing for the 50 per cent signal-to-noise ratio (the ratio at which 50 per cent of responses were correct) showed no significant differences between the Ponto Pro and the BP100 devices (p = 0.1) However, both devices showed significant improvement compared with the participants' previous bone-anchored hearing aid devices (p < 0.001). There were no significant differences between the two new devices in the questionnaire data.

Conclusion:

Both fully digital bone-anchored hearing aids demonstrated superior speech processing compared with the previous generation of devices. There were no substantial differences between the two digital devices in either objective or subjective tests.

Keywords

OsseointegrationHearing AidsHearing Loss, ConductiveDigital Signal Processing
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 128 , Issue 2 , February 2014 , pp. 119 - 127
Copyright
Copyright © JLO (1984) Limited 2014 

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Footnotes

Presented as a poster at the 3rd International Symposium on Bone Conduction Hearing – Craniofacial Osseointegration, 23–26 March, 2011, Sarasota, Florida, USA, and presented orally at the British Academy of Audiology Annual Conference, 9–11 November, 2011, Llandudno, Wales, UK.

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