What are the sound-absorbing fiber boards?
Ordinary materials have sound-absorbing effect, just how much difference. And when it comes to sound-absorbing board, we are only sound-absorbing coefficient of more than 0.3 of the material known as sound-absorbing material.
Sound-absorbing material:1, itself has sound-absorbing properties, porous fiber material.2, does not have sound-absorbing material, but processed into sound absorption structure.Common sound-absorbing materials are: polyester fiber sound-absorbing board, trough wood sound absorption board, hole wood sound-absorbing board, recycled wood sound-absorbing board, the latest is Dr. sound, high temperature ceramic sound-absorbing board, a fire prevention, water quality, hard environmental protection
The theory on the absorption coefficient is the best sound-absorbing board sound-absorbing effect 1 (all suck, no reflections), but in reality, this material does not exist (black holes in the universe are the sound absorption coefficient is 1, which is completely absorbed)
