音声の韻律的特徴と話者のパーソナリティ印象の関係性(<特集>音声が伝達する感性領域の情報の諸相)

抄録

From a series of the experiments on the expressive speech in terms of the information of personality impressions, quantitative relations between speech sounds and personality impressions were found. Prosodic features such as speech rate, pauses, and intonations were manipulated to synthesize the continua of speech stimuli. Participants were asked to rate their impressions on these stimuli using Big Five personality traits. The results indicated that each trait had a distinctive change pattern, while reversed U-shape patterns were their common characteristics. In other words, each personality trait could be estimated with a quadratic regression equation. In this equation, use of sensory scales converted from physical scales leads more accurate estimates. Further, by integrating these five equations, the whole personality impression could be re-constructed. This procedure can be useful to synthesize speech sounds with artificial personalities, and summarized as a model.