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Lippincott, Williams & Wilkins, Ear and Hearing, 1(31), p. 70-73, 2010

DOI: 10.1097/aud.0b013e3181bc7722

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Bimodal hearing benefit for speech recognition with competing voice in cochlear implant subject with normal hearing in contralateral ear

Journal article published in 2010 by Helen E. Cullington ORCID, Fan-Gang Zeng
This paper is available in a repository.
This paper is available in a repository.

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Abstract

Objectives: This project assessed electroacoustic benefit for speech recognition with a competing talker. Design: Using a cochlear implant subject with normal hearing in the contralateral ear, the contribution of low-pass and high-pass natural sound to speech recognition was systematically measured. Results: High-frequency sound did not improve performance, but low-frequency sound did, even when unintelligible and limited to frequencies below 150 Hz. Conclusions: The low-frequency sound assists separation of the two talkers, presumably using the fundamental frequency cue. Extrapolating this finding to regular cochlear implant users may suggest that using a hearing aid on the contralateral ear will improve performance, even with limited residual hearing.