| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound absorbing body which is disposed as a countermeasure for preventing the noise generated from noise sources, such as roads, railroads and factories, and is adequately used as a soundproof wall, etc. SOLUTION: This sound absorbing body 10 has a porous sound absorbing body 3 of a prescribed shape formed by providing a sound source side surface 1a and counter sound source side surface 1b of a fibrous molding 1 with film materials 2 and an air layer 4 behind (on the counter sound source side) of this porous sound absorbing body 3.
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