title: Speech recognition abilities of adults using cochlear implants with FM systems.
abstract: Speech recognition was evaluated for ten adults with normal hearing and eight adults with Nucleus cochlear implants (CIs) at several different signal-to-noise ratios (SNRs) and with three frequency modulated (FM) system arrangements: desktop, body worn, and miniature direct connect. Participants were asked to repeat Hearing in Noise Test (HINT) sentences presented with speech noise in a classroom setting and percent correct word repetition was determined. Performance was evaluated for both normal-hearing and CI participants with the desktop soundfield system. In addition, speech recognition for the CI participants was evaluated using two FM systems electrically coupled to their speech processors. When comparing the desktop sound field and the No-FM condition, only the listeners with normal hearing made significant improvements in speech recognition in noise. When comparing the performance across the three FM conditions for the CI listeners, the two electrically coupled FM systems resulted in significantly greater improvements in speech recognition in noise relative to the desktop soundfield system.
authors.affiliation: Advanced Hearing Research Center, Callier Center for Communication Disorders, University of Texas at Dallas, USA. eschafer@utdallas.edu
authors.forename: Erin C
authors.initials: EC
authors.lastname: Schafer
authors.forename: Linda M
authors.initials: LM
authors.lastname: Thibodeau
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D019929:Cochlear Implantation; D003054:Cochlear Implants; D004867:Equipment Design; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000628:therapy; D006801:Humans; D008144:Loudness Perception; D008297:Male; D008875:Middle Aged; D009622:Noise / Q000009:adverse effects*; D010898:Pitch Perception; D011846:Radio Waves; D013063:Speech Discrimination Tests; D013067:Speech Perception; D011795:Surveys and Questionnaires; D016896:Treatment Outcome