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Please use this identifier to cite or link to this item: https://hdl.handle.net/10119/4620

Title: Investigation of coarticulation in continuous speech of Japanese
Authors: Dang, Jianwu
Honda, Masaaki
Honda, Kiyoshi
Keywords: Speech production
Coarticulation
Speech dynamics
Articulatory movement
Speech analysis
Issue Date: 2004-09-01
Publisher: Acoustical Society of Japan(日本音響学会)
Magazine name: Acoustical science and technology
Volume: 25
Number: 5
Start page: 318
End page: 329
DOI: 10.1250/ast.25.318
Abstract: This study analyzed coarticulation involved in continuous speech based on articulo-graphic data obtained from three Japanese male speakers. Distribution of the articulation points of vowels and consonants revealed that speakers might compensate for morphological differences in the hard palate by adjusting the location of vowel articulation points. To evaluate the effects of the left and right phonemes on the target phoneme, three-phoneme sequences, consisting of five Japanese vowels (V) and ten apical and two palatal consonants (C), were extracted from read sentences and used in this analysis. A stepwise multiple regression method was used to analyze the phoneme sequences, in order to evaluate the "contributions" of the surrounding phonemes to the central one. The results showed that the horizontal component of the articulatory movement had a dominant function during articulation. The movement of the tongue tip was highly correlated to the tongue dorsum movement in the horizontal dimension, but was almost independent in the vertical dimension. This phenomenon suggested that coarticulation in VCV sequences can be considered as an independent consonantal gesture superimposed on a transitional portion between vowels. For apical-vowel combinations, the preceding consonant in CVC had a stronger effect on the vowel than the following one, but there was no dominance caused by the positions of the vowels in VCV sequences. For palatal-vowel combinations, the following phoneme showed a greater effect than the preceding phoneme in CVC sequences. In VCV sequences, the open and closed vowels showed different behaviors.
Rights: 日本音響学会, Jianwu Dang, Masaaki Honda and Kiyoshi Honda, Acoustical science and technology, 25(5), 2004, 318-329.
URI: https://hdl.handle.net/10119/4620
Material Type: publisher
Appears in Collections:b10-1. 雑誌掲載論文 (Journal Articles)

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