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Speech segment duration measurements in adult speakers with repaired cleft palate and hypernasality
Author(s) -
Leder Steven B.,
Lerman Jay W.,
Alfonso Peter J.
Publication year - 1988
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-198808000-00019
Subject(s) - voice , duration (music) , audiology , vowel , voice onset time , stop consonant , consonant , medicine , psychology , acoustics , speech recognition , computer science , physics
Consonant closure duration, vowel duration preceding word‐final stop consonants, and total VCVC utterance duration were measured in order to investigate if normal durations in these variables were exhibited in subjects with cleft palate and hypernasality. The data revealed no significant differences among three adult subject groups (noncleft, repaired cleft with mild hypernasality, and repaired cleft with severe hypernasality) on any of the duration measurements investigated, suggesting that speech timing for these features were not significantly altered by the presence of the nasal air leak. Speakers in the two hypernasal groups, however, showed smaller differences between vowel durations in voiced and voiceless stop environments than did speakers without cleft palate. There were significant differences among groups in durational cues between vowel types and between voicing features of stop consonants, both of which were in agreement with previous research.