Absorbers; Melamine Foam, Mineral Wool Batt, Low Density Fiberglass Batt, and High-Density Fiberglass Board are used in the room to absorb reflective energy where walls and ceilings create acoustical mirrors. Absorbers keep noise from reflecting from surfaces in a room and returning to the listening position as a delayed signal causing inaccurate noise levels. Absorption will lower the volume in the room to some degree because reflective noise is reduced therefore volume is reduced.