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  • Title: [The acoustic study on vowel movement of normal adult].
    Author: Lu H, Huang Z, Bai Y, Zhang L.
    Journal: Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi; 2011 May; 25(9):406-8. PubMed ID: 21805834.
    Abstract:
    OBJECTIVE: To study the relationship between the first formant (F1) and jaw, the second formant (F2) and tongue and the third formant (F3) and lip. Fine articulation of jaw, lips, tongue by measured formant of different single-vowel, in order to explore clinical implications of F1, F2 and F3. METHOD: Measure 30 hearing normal men's F1, F2, F3 of /a/, /i/, /e/, /u/ and /ü/. The study compared F1 of /a/, /i/, /e/ to find the relation ship between F1 and jaw movement by one-way anova, compared F2 of /a/, /i/, /e/, /u/ to find the relationship between F2 and four tongue movements, and compared F2 and F3 of /i/, /ü/ to find the relationship between F2, F3 and lip movement by paired-samples t test. RESULT: There was significant difference among F1 of /a/, /i/, /e/. F2 and F3 of /i/, /ü/ were also significantly different (P<0.01); F2 of /a/, /i/, /u/ that expresses tongue articulation movement exists significant difference (P<0.01), but both F2(a) and F2(e) did not differ significantly by multiple compare means. There were extremely significant differences (P<0.01) among other three positions of tongue. CONCLUSION: F1 can reflect different positions of jaw. F2 and F3 can reflect the position of lip and tongue. F2 can reflect different locations of tongue.
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