Hindawi BioMed Research International Volume 2018, Article ID 5264124, 8 pages https://doi.org/10.1155/2018/5264124
Research Article Speech Understanding and Sound Localization with a New Nonimplantable Wearing Option for Baha Tom Gawliczek ,1 Wilhelm Wimmer ,1,2 Fabio Munzinger Marco Caversaccio,1,2 and Martin Kompis 2 1 2
,2
Hearing Research Laboratory, ARTORG Center for Biomedical Engineering Research, University of Bern, 3008 Bern, Switzerland Department of ENT, Head and Neck Surgery, Inselspital, University of Bern, 3010 Bern, Switzerland
Correspondence should be addressed to Martin Kompis;
[email protected] Received 15 June 2018; Accepted 3 September 2018; Published 25 September 2018 Academic Editor: Fulvio Braido Copyright © 2018 Tom Gawliczek et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Objective. To measure the audiological benefit of the Baha SoundArc, a recently introduced nonimplantable wearing option for bone conduction sound processor, and to compare it with the known softband wearing option in subjects with normal cochlear function and a purely conductive bilateral hearing loss. Methods. Both ears of 15 normal hearing subjects were occluded for the time of the measurement, yielding an average unaided threshold of 49 dB HL (0.5 – 4 kHz). Soundfield thresholds, speech understanding in quiet and in noise, and sound localization were measured in unaided conditions and with 1 or 2 Baha 5 sound processors mounted on either a softband or a SoundArc device. Results. Soundfield thresholds and speech reception thresholds were improved by 19.5 to 24.8 dB (p
