title: [Quantitatively study of voice onset time-Glottal stop]
abstract: To quantitatively evaluate the acoustic characteristics of glottal stop, pronunciation of/ka/in 10 normal subjects and 14 patients with cleft palates were analyzed by sound spectrography and 20 msec in all normal articulation of /ka/ with an average time of 44.6 msec.In the test group of /ka/ demonstrated an average time of 20.8 msec.The inverse correlation ship between VOT and the psyco-acoustical judgment for the degree of distortion was demonstrated to be significant.
authors.affiliation: Department of Oral and Maxillofacial Surgery,School of Stomatology,Shanghai Second Medical University. Shanghai 200011,China.
authors.forename: G M
authors.initials: GM
authors.lastname: Wang
authors.forename: W H
authors.initials: WH
authors.lastname: Yuan
authors.forename: W L
authors.initials: WL
authors.lastname: Qiu
authors.forename: X Z
authors.initials: XZ
authors.lastname: Zhang
authors.forename: K
authors.initials: K
authors.lastname: Takahashi
authors.forename: K
authors.initials: K
authors.lastname: Michi
authors.forename: M
authors.initials: M
authors.lastname: Wakumoto