Development of an edutainment system with interactors of a teacher and a student in which a user plays a double role of them

InterActor is a CG-embodied interaction character driven by interrobot technology (iRT) to produce communicative movements and actions based only on speech input for entrained interaction. InterAnimal is an animal character of the speech-driven embodied entrainment character InterActor with the functions of both a speaker and a listener on the basis of nonverbal entrainment such as nodding and body actions and movements coherently related to speech in face-to-face communication. Focusing on the characteristics of animal characters, a prototype of a learning system with InterAnimal and an instruction interface, wherein the teacher enacts a double role, has been developed for pleasant and effective learning. In this paper, the concept of a teaching interface with InterAnimals enacting the role of a teacher and a student in which a user plays a double role is proposed, and the prototype of the system is developed. The effectiveness of the learning system and the interface is also demonstrated by the sensory evaluation of a questionnaire and a voice analysis.