SOUND ABSORPTION

Sound absorption is very vital in our diurnal life because human ears have different level of sound receptions. Other than that, sound is absorbed and this causes less echoes. Sound absorption in practice is inherent in materials or objects used in a room, and deliberately applied on the surfaces of a room, building or enclosures such as ceilings, linings on the walls. Sound absorption applications are also used in ductwork, air louvers and silencers. Sound is “absorbed” by energy conversion into heat in the material. Material such as fiber glass or mineral wool blankets, open cell foams and acoustic tiles, are called dissipative or porous absorbers.