Effects of speech rate, background noise, and simulated hearing loss on speech rate judgment and speech intelligibility in young listeners. 2009

Elizabeth M Adams, and Robert E Moore
Department of Speech Language Pathology and Audiology, University of South Alabama, Mobile, AL 36688-0002, USA. eadams@usouthal.edu

OBJECTIVE To study the effect of noise on speech rate judgment and signal-to-noise ratio threshold (SNR50) at different speech rates (slow, preferred, and fast). METHODS Speech rate judgment and SNR50 tasks were completed in a normal-hearing condition and a simulated hearing-loss condition. METHODS Twenty-four female and six male young, normal-hearing participants. RESULTS Speech rate judgment was not affected by background noise regardless of hearing condition. Results of the SNR50 task indicated that, as speech rate increased, performance decreased for both hearing conditions. There was a moderate correlation between speech rate judgment and SNR50 with the various speech rates, such that as judgment of speech rate increased from too slow to too fast, performance deteriorated. CONCLUSIONS These findings can be used to support the need for counseling patients and their families about the potential advantages to using average speech rates or rates that are slightly slowed while conversing in the presence of background noise.

UI MeSH Term Description Entries
D008297 Male Males
D009622 Noise Any sound which is unwanted or interferes with HEARING other sounds. Noise Pollution,Noises,Pollution, Noise
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D013060 Speech Communication through a system of conventional vocal symbols. Public Speaking,Speaking, Public
D013065 Speech Intelligibility Ability to make speech sounds that are recognizable. Intelligibilities, Speech,Intelligibility, Speech,Speech Intelligibilities
D055815 Young Adult A person between 19 and 24 years of age. Adult, Young,Adults, Young,Young Adults
D034381 Hearing Loss A general term for the complete or partial loss of the ability to hear from one or both ears. Deafness, Transitory,Hearing Impairment,Hearing Loss, Transitory,Hypoacusis,Transitory Hearing Loss,Deafnesses, Transitory,Hypoacuses,Loss, Hearing,Loss, Transitory Hearing,Transitory Deafness,Transitory Deafnesses,Transitory Hearing Losses

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