Wimmer, Wilhelm; Weder, Stefan; Caversaccio, Marco; Kompis, Martin (2015). Speech Intelligibility in Noise With a Pinna Effect Imitating Cochlear Implant Processor. Otology & neurotology, 37(1), pp. 19-23. Lippincott Williams & Wilkins 10.1097/MAO.0000000000000866
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OBJECTIVE
To evaluate the speech intelligibility in noise with a new cochlear implant (CI) processor that uses a pinna effect imitating directional microphone system.
STUDY DESIGN
Prospective experimental study.
SETTING
Tertiary referral center.
PATIENTS
Ten experienced, unilateral CI recipients with bilateral severe-to-profound hearing loss.
INTERVENTION
All participants performed speech in noise tests with the Opus 2 processor (omnidirectional microphone mode only) and the newer Sonnet processor (omnidirectional and directional microphone mode).
MAIN OUTCOME MEASURE
The speech reception threshold (SRT) in noise was measured in four spatial settings. The test sentences were always presented from the front. The noise was arriving either from the front (S0N0), the ipsilateral side of the CI (S0NIL), the contralateral side of the CI (S0NCL), or the back (S0N180).
RESULTS
The directional mode improved the SRTs by 3.6 dB (p < 0.01), 2.2 dB (p < 0.01), and 1.3 dB (p < 0.05) in the S0N180, S0NIL, and S0NCL situations, when compared with the Sonnet in the omnidirectional mode. There was no statistically significant difference in the S0N0 situation. No differences between the Opus 2 and the Sonnet in the omnidirectional mode were observed.
CONCLUSION
Speech intelligibility with the Sonnet system was statistically different to speech recognition with the Opus 2 system suggesting that CI users might profit from the pinna effect imitating directionality mode in noisy environments.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Ear, Nose and Throat Disorders (ENT) 10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Hearing Research Laboratory 10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research |
Graduate School: |
Graduate School for Cellular and Biomedical Sciences (GCB) |
UniBE Contributor: |
Wimmer, Wilhelm, Weder, Stefan Andreas, Caversaccio, Marco, Kompis, Martin |
Subjects: |
600 Technology > 610 Medicine & health 500 Science > 570 Life sciences; biology |
ISSN: |
1531-7129 |
Publisher: |
Lippincott Williams & Wilkins |
Language: |
English |
Submitter: |
Wilhelm Wimmer |
Date Deposited: |
05 Oct 2015 16:50 |
Last Modified: |
02 Mar 2023 23:26 |
Publisher DOI: |
10.1097/MAO.0000000000000866 |
PubMed ID: |
26427637 |
BORIS DOI: |
10.7892/boris.72182 |
URI: |
https://boris.unibe.ch/id/eprint/72182 |
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