Speech recognition in noise by hearing-impaired and noise-masked normal-hearing listeners.
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A prevailing complaint among individuals with sensorineural hearing loss (SNHL) is difficulty understanding speech, particularly under adverse listening conditions. The present investigation compared the speech-recognition abilities of listeners with mild to moderate degrees of SNHL to normal-hearing individuals with simulated hearing impairments, accomplished using spectrally shaped masking noise. Speech-perception ability was assessed using the predictability-high sentences from the Speech Perception in Noise test. Results revealed significant differences between groups in sentential-recognition ability, with the hearing-impaired subjects performing poorer than the masked-normal listeners. These findings suggest the presence of a secondary distortion degrading sentential-recognition ability in the hearing impaired, implications of these data will be discussed concerning the mechanism(s) responsible for speech perception in the hearing impaired.
Medicine and Health Sciences
Adult, Audiometry, Pure-Tone, Hearing, Hearing Disorders, Humans, Middle Aged, Noise, Perceptual Masking, Speech Perception, Speech Reception Threshold Test
Needleman, A R and Crandell, C C, "Speech recognition in noise by hearing-impaired and noise-masked normal-hearing listeners." (1995). Department of Audiology Faculty Articles. 45.