2022 Fiscal Year Final Research Report
Designing an Autonomous Prosody Correction Tool Incorporating Internal Rehearsal and Verification of Its Effectiveness
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 |
Section | 一般 |
Research Field |
Foreign language education
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Research Institution | Nagoya University |
Principal Investigator |
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Project Period (FY) |
2017-04-01 – 2023-03-31
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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 |
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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Free Research Field |
第二言語習得
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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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