Abstract
Recently, most of the moderns have some stresses and require the needs of healing. Therefore, the research and development of the system which is able to give the relaxation effect has been actively performed. However, the vital signals used for an index are various, and there are many methods for measuring the relaxation effect. The methodology is not established as the system. Therefore, we developed the Interactive Chaotic Amusement System (ICAS) that generates the sound deciding the musical note, duration and volume by using network of chaotic elements that is able to control synchronism and asynchronism behavior. In this research, the index of relaxation degree for each user was obtained by the electroencephalogram information, and the system with the automatic tuning function of the ICAS parameter was developed. We made a subject use the proposed sound generation system and compared the result estimated relaxation effect by this system with the questionnaire result when a subject heard generated sounds. As a result, it was able to confirm that the subject's questionnaire result and the index of the proposed method are correlated.
