Adaptive Method for State Estimation of Sound Environment System with Uncertainty and Its Application to Psychological Evaluation: Recent Perspecives

The actual sound environment system exhibits various types of linear and non-linear characteristics,
and it often contains uncertainty. Furthermore, the observations in the sound environment are often in
the level-quantized form. In this paper, two types of methods for estimating the specific signal for
sound environment systems with uncertainty and the quantized observation are proposed by
introducing newly a system model of the conditional probability type and moment statistics of fuzzy
events. The effectiveness of the proposed theoretical methods is confirmed by applying them to the
actual problem of psychological evaluation for the sound environment.