THE EFFECT OF AGING ON SPEECH PERCEPTION IN NOISE.
Item
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Title
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THE EFFECT OF AGING ON SPEECH PERCEPTION IN NOISE.
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Identifier
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AAI8103948
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identifier
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8103948
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Creator
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MAYER, CAROLE LUSTIG.
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Contributor
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Harry Levitt
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Date
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1980
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Language
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English
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Publisher
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City University of New York.
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Subject
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Health Sciences, Audiology
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Abstract
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This research attempted to isolate the effect of aging for listeners of speech in noise. CHABA sentences of everyday American speech were recorded by four male and four female speakers. The sentences were systematically combined with samples of subway and traffic noise. The tapes were presented in a balanced design to 160 listeners who represented a non-clinical population with essentially normal hearing. The subjects were divided in decade groups: 20-29 years through 60-69 years, and the data were analyzed for each age group.;The results show that the intelligibility of speech in noise is significantly reduced with increasing age, and that this effect is seen for a wide range of conditions. The effect was greatest when the speech-to-noise ratios were poorest. Speaker sex was revealed to be a significant factor for this study, with the female voices perceived more easily in noise in almost all conditions. All speakers had been equalized for power, and this advantage is interpreted as a function of the relatively high frequency energy in the female voices. No significant differences were found on the basis of listener sex, in spite of the well-documented fact that thresholds for men deteriorate at a more rapid rate than the thresholds for women. This finding suggests that the negative effect of increasing age on the perception of speech in noise demonstrated in this investigation is considerably more subtle than would be evident in a randomly selected population.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Speech and Hearing Sciences
