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Influence of directionality and maximal power output on speech understanding with bone anchored hearing implants in single sided deafness

Krempaska, Silvia ; Koval, Juraj ; Schmid, Christoph ; Pfiffner, Flurin ; Kurz, Anja ; Kompis, Martin

In: European Archives of Oto-Rhino-Laryngology, 2014, vol. 271, no. 6, p. 1395-1400

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    Titre
    • Influence of directionality and maximal power output on speech understanding with bone anchored hearing implants in single sided deafness
    Auteur
    • Krempaska, Silvia. Department of ENT, University of Kosice, Kosice, Slovakia
    • Koval, Juraj. Department of ENT, University of Kosice, Kosice, Slovakia
    • Schmid, Christoph. Department of ENT, Head and Neck Surgery, Inselspital, University of Bern, 3010, Bern, Switzerland
    • Pfiffner, Flurin. Department of ENT, Head and Neck Surgery, Inselspital, University of Bern, 3010, Bern, Switzerland
    • Kurz, Anja. Department of ENT, Head and Neck Surgery, Inselspital, University of Bern, 3010, Bern, Switzerland
    • Kompis, Martin. Department of ENT, Head and Neck Surgery, Inselspital, University of Bern, 3010, Bern, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • European Archives of Oto-Rhino-Laryngology, 2014, vol. 271, no. 6, p. 1395-1400. Springer Berlin Heidelberg
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:324863
    Summary
    Bone-anchored hearing implants (BAHI) are routinely used to alleviate the effects of the acoustic head shadow in single-sided sensorineural deafness (SSD). In this study, the influence of the directional microphone setting and the maximum power output of the BAHI sound processor on speech understanding in noise in a laboratory setting were investigated. Eight adult BAHI users with SSD participated in this pilot study. Speech understanding in noise was measured using a new Slovak speech-in-noise test in two different spatial settings, either with noise coming from the front and noise from the side of the BAHI (S90N0) or vice versa (S0N90). In both spatial settings, speech understanding was measured without a BAHI, with a Baha BP100 in omnidirectional mode, with a BP100 in directional mode, with a BP110 power in omnidirectional and with a BP110 power in directional mode. In spatial setting S90N0, speech understanding in noise with either sound processor and in either directional mode was improved by 2.2-2.8dB (p=0.004-0.016). In spatial setting S0N90, speech understanding in noise was reduced by either BAHI, but was significantly better by 1.0-1.8dB, if the directional microphone system was activated (p=0.046), when compared to the omnidirectional setting. With the limited number of subjects in this study, no statistically significant differences were found between the two sound processors.