First Advisor

Robert L. Casteel

Term of Graduation

Spring 1982

Date of Publication


Document Type


Degree Name

Master of Science (M.S.) in Speech: Emphasis in Speech Pathology/Audiology


Speech Communication




Speech disorders in children, Deaf children -- Language, Children -- Language



Physical Description

1 online resource (3, vi, 99 pages)


The present study was designed to investigate the perceptual and spectrographic features of vocal effort in the speech of severely to profoundly hearing-impaired children and their normal hearing agemates. Recorded vowel and speech samples were obtained from ten normal hearing children, ten severely to profoundly hearing-impaired children attending Oral/Aural educational programs, and eight severely to profoundly hearing-impaired children attending Total Communication programs. The degree of perceived vocal effort for vowels and speech was evaluated, using a nine point equal-appearing-interval scale. In order to obtain a physical measurement for vocal effort, a digital wave analyzer was used to produce vowel spectra, and the amount of in-harmonic (noise) components in each spectrum was indexed as spectral noise level.


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