| Project/Area Number |
17K02924
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Foreign language education
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | プロソディ / リズム / イントネーション / プロソディ・シャドーイング / 内的リハーサル / 再現率 / プロソディ習得 / 感情移入 / アプリケーション / 一致率 / ピッチ / 自律型学習 / 自律型 / 音声認識 / 自律型教材 |
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| Outline of Final Research Achievements |
Focusing on prosody (rhythm and intonation) rather than the phoneme level, this study aims to propose an autonomous learning tool that addresses one of the characteristics of "Japanese-accented English" among Japanese learners of English, namely the "narrow pitch range and flat intonation." The tool would provide opportunities for learners to engage in "internal rehearsal" of sentence prosody through humming, with the goal of bringing their prosodic features closer to those of the model speech. From the data collected, it was partly observed that the pitch range tends to increase with the addition of an "internal rehearsal phase" of humming to imitate sentence prosody. However, some subjects found it difficult to imitate the humming sound, and therefore we sought to improve the method of generating the humming sound.
The second validation data was to be collected, but was cancelled under the influence of the COVID-19 pandemic.
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| Academic Significance and Societal Importance of the Research Achievements |
日本語を母語とする英語学習者に特徴的な「日本語訛りの英語」については、敢えて矯正する必要はないという意見もあるが、時に意思疎通の妨げになったり、誤解を生むこともあるため、修正することが望ましい。「通じやすさ」の観点から言えば、単語１つ１つの発音よりも、センテンスレベルのプロソディが重要であることが指摘されている。本研究で提案したツールは、発話音声からハミング音声を生成する方法に改善すべき余地を残してはいるが、英語のみならず多言語に応用できる点で汎用性があると考える。
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