sound absorption coefficient


sound absorption coefficient

[′sau̇nd ab‚sȯrp·shən ‚kō·i‚fish·ənt] (acoustics) The ratio of sound energy absorbed to that arriving at a surface or medium. Also known as acoustic absorption coefficient; acoustic absorptivity.

sound absorption coefficient,

a The fraction of the sound energy (incident at random angles on a surface) which is absorbed or otherwise not reflected by the surface.