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acoustic foam
Acoustic foam is an open celled foam used for acoustic treatment. It attenuates airborne sound waves by increasing air resistance, thus reducing the amplitude of the waves. The energy is dissipated as heat. Acoustic Foam can be made in several different colors, sizes and thickness.
Acoustic foam comes in a variety of sizes and can be attached to walls, ceilings, doors, and other features of a room to control noise levels, vibration, and echoes.
Many acoustic foam products are treated with dyes and/or fire retardants.
== Uses ==
The objective of acoustic foam is to improve the sound quality by removing residual sound in any space. This purpose requires strategic placement of acoustic foam panels on walls, ceiling and floors, effectively eliminating resonance within the room.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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