Speech Intelligibility in Noise With a Pinna Effect Imitating Cochlear Implant Processor.

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:

10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Image Guided Therapy > ARTORG Center - Artificial Hearing Research
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

Graduate School:

Graduate School for Cellular and Biomedical Sciences (GCB)

UniBE Contributor:

Wimmer, Wilhelm; Weder, Stefan; Caversaccio, Marco and Kompis, Martin

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health

ISSN:

1531-7129

Publisher:

Lippincott Williams & Wilkins

Language:

English

Submitter:

Wilhelm Wimmer

Date Deposited:

05 Oct 2015 16:50

Last Modified:

26 Jun 2016 02:07

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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