2022 Fiscal Year Final Research Report
Vowel tenseness in Japanese /uR/: A quantitative study of Japanese tense and lax vowels
| Project/Area Number |
21K19976
|
|---|
| Research Category |
Grant-in-Aid for Research Activity Start-up
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
0102:Literature, linguistics, and related fields
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2021-08-30 – 2023-03-31
|
| Keywords | 英語 / 日本語 / 母音 / 外国語教育 / 言語学 / 音声学 / 発音 / フォルマント |
|---|
| Outline of Final Research Achievements |
The formant angle θ1 for the Japanese vowels /uR/(HL) and /uR/(LH) were significantly different and can be regarded as one of the indicators of vowel tenseness. Regarding Japanese vowels /iR/ and /uR/, which are classified as close vowels in the same category in articulatory phonetics, there was a correlation between vowel tenseness and pitch accents.
The formant angle θ1 and the first formant frequency F133 were investigated in English tense/lax vowels /u:/ and /U/. Regarding English vowels mentioned above, θ1 and F133 were significantly different. Based on the data, we devised pronunciation teaching methods of /u:/ and /U/, taking into account the time dependence of vowel tenseness and formant frequencies.
A comprehensive study on pronunciation teaching methods of English vowels /i:/, /I/, /u:/, and /U/ was conducted. There is a possibility that vowel tenseness in English can be realized by using pitch accents of Japanese vowels.
|
| Free Research Field |
言語学
|
| Academic Significance and Societal Importance of the Research Achievements |
調音音声学においては、母音の分類をする際に主に3つの要素が使用される。それらは「舌の高さ（開口度）」、「舌の前後の位置」及び「円唇性」である。例えば、日本語話者が英語の母音を発音する上では、原理的に上述の3つの要素を実現すれば良い。しかし、現実的にはその実現は非常に難しく、発音手法に関する様々な研究が継続的に行われており、新たなアプローチが求められる現状がある。
本研究は、日本語の母音/uR/、英語の緊張母音/u:/と弛緩母音/U/に関する新たな音声学的データを検討し、日本語話者向けの「母音の音質の時間依存性」を考慮した英語の緊張母音/u:/と弛緩母音/U/の発音手法を考案したものである。
|
