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Journal of Speech and Hearing Research Vol.39 565-572 June 1996.
© American Speech-Language-Hearing Association
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Voice Onset Time in Speech Produced During Simultaneous Communication

Nicholas Schiavetti 1
Robert L. Whitehead 2
Dale Evan Metz 1
Brenda Whitehead 2

Megan Mignerey 1
1 State University of New York Geneseo
2 National Technical Institute for the Deaf Rochester, NY

This study investigated speaking rate and voice onset time (VOT) in speech produced during simultaneous communication (SC) by speakers with normal hearing. Stimulus words initiated with voiced and voiceless plosives were embedded in a sentence that was spoken and produced with SC. VOT measures were calculated from acoustic recordings and results indicated significant differences between speech-only and SC conditions, with speech produced during SC demonstrating both slower speaking rate and increased VOT of voiceless consonants. VOTs produced during both SC and speech-only conditions followed English voicing rules and varied appropriately with place of articulation. The somewhat enlarged voicing contrast during SC was consistent with previous findings regarding the influence of rate changes on the temporal fine structure of speech (Miller, 1987) and was similar to the voicing contrast results reported for clear speech by Picheny, Durlach, and Braida (1986).

KEY WORDS: voice onset time, simultaneous communication, signed English, finger-spelling

Submitted on June 19, 1995
Accepted on November 21, 1995






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