Abstract
Noise generated within an enclosure by a vibrating structure is a common problem. The active control of such noise is one technique that can solve the issue. In our research, this issue has been studied using a simple model. The model was constructed by only one flexible wall and stiff rectangular enclosure. However, an actual product often has two or more vibrating walls on large surface. Therefore, all of the flexible walls and cavity should be treated as components of the system. Thus, this research proposes the sound control technique for the structure that has two or more vibrating walls.
