| Project/Area Number |
61510211
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
国語学
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| Research Institution | Naruto University of Education |
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Principal Investigator |
IMAISHI Motohisa Prof. Naruto Univ. of Education Dept. of Japanese Language Education, 学校教育学部, 教授 (80093574)
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| Project Period (FY) |
1986 – 1987
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| Project Status |
Completed (Fiscal Year 1987)
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| Budget Amount *help |
¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1987: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1986: ¥1,000,000 (Direct Cost: ¥1,000,000)
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| Keywords | Japanese / Ryukyu dialect / Vowel / Formant / Acoustic phonetics / Sound spectrograph / Spectral analysis / LPC / AbS / 琉球方言音声 / ソナグラフ / パーソナルコンピュータ / 音声資料 / ホルマント周波数 / LPC分析 |
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| Research Abstract |
This is experimental acoustic study of Ryukyu dialects, with special reference to its characteristic speech sounds. I made a collection of the dialectal speech sounds.
The characteristic vowels were analyzed mostly by means of the digital Soundspectrograph. Some of them were re-analyzed using the Linear Prediction Coding (LPC) technique and the Analysis by- Symthesis(AbS) technique, which enables us to measure most accurately the formant frequencies of a given vowels.
Process of centralizing dialectal vowels in the upper middle region is an interesting phenomenum. [I^^<<two over dot>>],[W^^<<two over dot>>]or[e^^<<two over dot>>], though undeterminable as regards the exact position, may be indicative of the ferminal point of the vomel centralization. And F_2 range may concentrate in the vicinity of 1400Hz to 1500Hz.
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