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A Hundred Ways to Encode Sound Signals for Cochlear Implants

delete2025-05-01
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PRE
AI
D
Dietmar M. Wohlbauer *
N
Norbert Dillier
DOI:10.1146/annurev-bioeng-102623-121249delete
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Abstract

Abstract

En 中文
Cochlear implants are the most successful neural prostheses used to restore hearing in severe-to-profound hearing-impaired individuals. The field of cochlear implant coding investigates interdisciplinary approaches to translate acoustic signals into electrical pulses transmitted at the electrode-neuron interface, ranging from signal preprocessing algorithms, enhancement, and feature extraction methodologies to electric signal generation. In the last five decades, numerous coding strategies have been proposed clinically and experimentally. Initially developed to restore speech perception, increasing computational possibilities now allow coding of more complex signals, and new techniques to optimize the transmission of electrical signals are constantly gaining attention. This review provides insights into the history of multichannel coding and presents an extensive list of implemented strategies. The article briefly addresses each method and considers promising future directions of neural prostheses and possible signal processing, with the ultimate goal of providing a current big picture of the large field of cochlear implant coding.
Keywords:
hearing
deafness
cochlear implant
auditory prostheses
signal processing
electrical stimulation

Journal

Annual Review of Biomedical Engineering cover
Annual Review of Biomedical Engineering
IF:
9.6
Papers:
482
Citations:
5.6K

Organization

U
Univ Zurich
Scholars:
1.9K
Papers: 875
Citations: 447
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