Speech Perception with Music Maskers by Cochlear Implant Users and Normal-Hearing Listeners

Autor/inn/en	Eskridge, Elizabeth N.; Galvin, John J., III; Aronoff, Justin M.; Li, Tianhao; Fu, Qian-Jie
Titel	Speech Perception with Music Maskers by Cochlear Implant Users and Normal-Hearing Listeners
Quelle	In: Journal of Speech, Language, and Hearing Research, 55 (2012) 3, S.800-810 (11 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/1092-4388(2011/11-0124)
Schlagwörter	Assistive Technology; Music; Auditory Perception; Cues; Speech; Auditory Stimuli; Hearing (Physiology); Hearing Impairments + Suchen Sie Ihr Suchwort? Musik; Auditive Wahrnehmung; Akustische Wahrnehmung; Akustik; Stichwort; Speaking; Sprechen; Auditive Stimulation; Gehör; Hören; Hearing impairment; Hörbehinderung
Abstract	Purpose: The goal of this study was to investigate how the spectral and temporal properties in background music may interfere with cochlear implant (CI) and normal-hearing listeners' (NH) speech understanding. Method: Speech-recognition thresholds (SRTs) were adaptively measured in 11 CI and 9 NH subjects. CI subjects were tested while using their clinical processors; NH subjects were tested while listening to unprocessed audio. Speech was presented with different music maskers (excerpts from musical pieces) and with steady, speech-shaped noise. To estimate the contributions of energetic and informational masking, SRTs were also measured in "music-shaped noise" and in music-shaped noise modulated by the music temporal envelopes. Results: NH performance was much better than CI performance. For both subject groups, SRTs were much lower with the music-related maskers than with speech-shaped noise. SRTs were strongly predicted by the amount of energetic masking in the music maskers. Unlike CI users, NH listeners obtained release from masking with envelope and fine structure cues in the modulated noise and music maskers. Conclusions: Although speech understanding was greatly limited by energetic masking in both subject groups, CI performance worsened as more spectrotemporal complexity was added to the maskers, most likely due to poor spectral resolution. (As Provided).
Anmerkungen	American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail: subscribe@asha.org; Web site: http://jslhr.asha.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10