The wave control method which focuses on traveling waves has attracted attention. They can achieve control that is difficult with modal control method. Applying wave control method, an acoustic trapping system that traps sound to a specific region is proposed. However, this research is limited to theoretical analysis, and no empirical experiments have been conducted. Therefore, we aim to realize an acoustic trapping system considering the dynamic characteristics of speakers. As previously reported, we constructed a feedback control system that traps sound using a wave filter. In this paper, as a control system closer to implementation, we construct an approximate system using FIR filter.
OGATA et al. (Wed,) studied this question.