Sound absorbing arrangement using a porous material

摘要

A sound absorbing arrangement using a porous material has a sound absorbing plate (2) of a thin plate porous material made by partially heating for welding plastic particles and a supporting member (1) for supporting the sound absorbing plate and forming a back air space. Plural reflecting members (40) are disposed to be opposed to the surface of the sound absorbing plate. The sound absorbing arrangement has a superior sound absorption characteristic from lower frequencies to higher frequencies. <IMAGE>