交互発話における発話長と発話間隔の時間的階層性

抄録

The purpose of this study is to clarify the temporal structure of speech dynamics in alternate speech. Experimental task is a very simple dialogue in which one speaks “A” and the other speaks “B” alternately. This alternate speech was realized between subject and machine, and subjects should focus their attention to the voice from machine-side. In this condition, two parameters, such as speech duration and speech interval, on machine-side were controlled. This revealed the mutual interaction of speech duration and the mutual interaction of speech interval in alternate speech. Temporal development of speech duration was much faster than that of speech interval in this interaction process, suggesting the temporal hierarchy between them. Furthermore, interaction of speech interval was influenced from breath process and interaction of speech duration was effected from vocalization process. These results suggest that human communication in alternate speech is a kind of hierarchical dynamic process between the control of speech duration and that of speech interval.