Analysis of relationship between impression of human-to-human conversations and prosodic change and its modeling
Ryota Nishimura, Norihide Kitaoka, Seiichi Nakagawa · 2008
If a dialog system could respond to a user as naturally as a human, the interaction would be smoother. Imitating human prosodic characteristics of utterances is important in computer-to-human natural interaction. To develop a cooperative/friendly spoken dialog system, we analyzed the correlation between the fundamental frequency’s synchrony tendency, or overlap fre-quency, and subjective measures of “liveliness”, “familiarity”, and “informality ” in human-to-human dialogs. We also mod-eled the properties of these features to realize chat-like conver-sations in our spoken dialog system. Index Terms: spoken dialog system, prosody control, response timing, chat-like conversation