Bimodal cochlear implants: The role of acoustic signal level in determining speech perception benefit

Michael Dorman, Philip Loizou, Shuai Wang, Ting Zhang, Anthony Spahr, Louise Loiselle, Sarah Cook

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

The aim of this project was to determine for bimodal cochlear implant (CI) patients, i.e. patients with low-frequency hearing in the ear contralateral to the implant, how speech understanding varies as a function of the difference in level between the CI signal and the acoustic signal. The data suggest that (1) acoustic signals perceived as significantly softer than a CI signal can contribute to speech understanding in the bimodal condition, (2) acoustic signals that are slightly softer than, or balanced with, a CI signal provide the largest benefit to speech understanding, and (3) acoustic signals presented at maximum comfortable loudness levels provide nearly as much benefit as signals that have been balanced with a CI signal.

Original languageEnglish (US)
Pages (from-to)234-238
Number of pages5
JournalAudiology and Neurotology
Volume19
Issue number4
DOIs
StatePublished - Nov 7 2014

Keywords

  • Acoustic signal level
  • Bimodal benefit
  • Cochlear implant
  • Speech perception

ASJC Scopus subject areas

  • Physiology
  • Otorhinolaryngology
  • Sensory Systems
  • Speech and Hearing

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