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Open Access Modeling Speech Intelligibility of Simulated Bimodal and Single-Sided Deaf Cochlear Implant Users

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This article is Open Access under the terms of the Creative Commons CC BY licence.

A model of speech intelligibility (SI) for bimodal cochlear implant (CI) subjects was extended to include different amounts of aided impaired hearing contralateral to the CI. This was done by using a nonlinear hearing aid (HA) simulation, shadow filtering, and adding an electro-acoustic (EA) weighting function to address frequency overlap across ears. The extended model predicts speech-in-noise performance of simulated bimodal and single-sided deaf CI subjects with high accuracy, including their spatial release of masking for different spatial scenarios. The best fitting EA function indicates the importance of electrically versus acoustically stimulated ear to the model.

© 2018 The Author(s). Published by S. Hirzel Verlag · EAA. This is an open access article under the terms of the Creative Commons Attribution (CC BY 4.0) license (

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Document Type: Research Article

Publication date: September 1, 2018

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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