Fixed and adaptive beamforming improves speech perception in noise in cochlear implant recipients equipped with the MED-EL SONNET audio processor

Clemens Honeder, Rudolfs Liepins, Christoph Arnoldner, Hana Šinkovec, Alexandra Kaider, Erich Vyskocil and Dominik Riss

PLOS ONE, 2018, vol. 13, issue 1, 1-10

Abstract: Objective: To determine the impact of the fixed and adaptive beamforming technology of the new MED-EL SONNET cochlear implant audio processor on speech perception in noise. Methods: The study cohort comprises 18 postlingually deafened adult cochlear implant recipients with at least six months of experience. Speech reception thresholds were measured with the Oldenburg Sentence Test in continuous, speech-shaped noise. Target sentences were presented in front of the listener, with noise sources placed at -135° and 135°, respectively. Outcome measures were the differences in speech reception threshold using omnidirectional, fixed and adaptive beamformer microphone settings. Results: The use of directional microphones significantly improved speech reception thresholds: fixed beamformer vs. omnidirectional: 4.3 dB (95%-CI [3.1; 5.5]), p

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0190718

DOI: 10.1371/journal.pone.0190718

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