Development of a Sound Absorber Made of Flexible Wooden Boards With Resonators

Abstract

Flexible wooden boards with new sound absorption characteristics have been developed to improve the indoor acoustic environment of buildings. These sound absorption characteristics, achieved with a Helmholtz resonator, vary depending on the cross-sectional shape and surface shape of the boards. Also, the sound absorption performance is confirmed in an actual building. The results will lead to the development of sound-absorbing wooden as interior materials and also promote wooden interiors of public buildings.