Speech results with a bilateral multi-channel cochlear implant subject for spatially separated signal and noise
Authorvan Hoesel, Richard J. M.; Clark, Graeme M.
Source TitleAustralian Journal of Audiology
Document TypeJournal Article
Citationsvan Hoesel, R. J. M., & Clark, G. M. (1999). Speech results with a bilateral multi-channel cochlear implant subject for spatially separated signal and noise. Australian Journal of Audiology, 21(1), 23-28.
Access StatusOpen Access
This is a publisher’s version of an article published in Australian Journal of Audiology 1999. This version is reproduced with permission from the publisher, Australian Academic Press. http://www.australianacademicpress.com.au/
Speech tests in noise were administered to a bilaterally implanted cochlear implant subject. Performance for simultaneous use of two identical implants, with the same speech processing strategy on two independent standard clinical processors, was compared with that of the better performing monaural side alone. Speech was presented at an angle of 45 degrees toward one ear, with noise at 45 degrees toward the contralateral side. Tests were also administered for speech and noise reversed in location. When the speech signal was on the same side as the subject's better performing ear, monaural and binaural tests resulted in similar scores. When the speech was on the opposite side, however, the binaural condition showed significantly better speech scores. The results indicate that binaural implants can provide improved performance in noise when speech and noise arc spatially separated.
Keywordsotolaryngology; speech testing; speech processing; cochlear implant
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