Seaver, Earl J., III
M.A. (Master of Arts)
Department of Communicative Disorders
Spectral analysis (Phonetics); Consonants; Speech; Hearing impaired
This study investigated the initial stop consonant productions of normal-hearing and intelligible hearing-impaired speakers. Ten normal-hearing and ten hearing-impaired speakers served as subjects for this investigation. Each subject was asked to produce the words "pill, bill, spill, tile, dial, style, kate, gate, skate" three times each for a total of 27 productions. Acoustic analyses were made of the productions. In this study, different voice-onset time durations were found for speaker group, consonant voicing, and place of articulation. These results were consistent with previous studies in which voice-onset time of voiced and voiceless stop consonants varied according to place of articulation and degree of hearing-impairment. These results raised doubts whether normative values for voice-onset time for normal-hearing speakers should be applied to the speech of intelligible hearing-impaired speakers. Implications for understanding factors contributing to intelligible speech in the hearing-impaired were discussed.
Liscic, Debra Schumann, "A spectrographic analysis of voice-onset time for normal-hearing and intelligible hearing-impaired speakers" (1987). Graduate Research Theses & Dissertations. 561.
Northern Illinois University
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