| 英文摘要 |
本研究は、同一声優が演じる性格の異なるキャラクターの音声を分析し、内面属性（性格）が基本周波数（F0）や時間長などの韻律的特徴にいかに反映されるかを検討したものである。社会的属性を統一した女子高校生10名（東京大学式エゴグラム第2版〔TEGⅡ〕の5類型×良悪各1）を設定し、プロ女性声優1名が演じた音声をPraatで分析、さらにインタビューで演技意図を確認した。結果、FC・AC型は高ピッチ、A型は低く抑揚が小、CP型はピッチレンジが大きいなど、性格類型ごとに特徴的傾向が認められた。時間長ではNP型が発話・ポーズともに長く、FC型は短くテンポが速いなど差異が明確であった。これらは声優の演技戦略とも概ね一致し、性格という内面属性が韻律的特徴に体系的に反映される可能性を示した。
This study analyzes the voices of different personality-based characters performed by the same voice actor, investigating how internal attributes (personality traits) are reflected in prosodic features such as fundamental frequency (F0) and duration. Ten female high school characters with unified social attributes were created based on the five personality types of the TEG-II (Tokyo University Egogram, 2nd edition), with one positive and one negative example for each type. A professional female voice actor recorded the lines, which were analyzed acoustically using Praat. A follow-up interview was conducted to confirm her acting intentions.The results revealed distinct prosodic patterns across personality types. FC and AC types exhibited higher pitch values, whereas the A type showed lower pitch and reduced intonational variation. The CP type demonstrated the widest pitch range. In terms of duration, the NP type showed the longest utterance and pause durations, while the FC type was the shortest and fastest in tempo. These findings were largely consistent with the actor’s intentional performance strategies, suggesting that personality as an internal attribute may be systematically reflected in prosodic features. |
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