DAMPA whitepaper acoustics - Flipbook - Page 12
Types of
Absorbers
Porous Absorbers
Porous absorbers consist of fibers that vibrate when struck by sound waves. This movement converts sound energy
into heat, effectively reducing reverberation.
A good example of a space filled with porous absorbers is a clothing store. Here, the fabric on racks absorbs sound,
creating a noticeably different acoustic environment compared to other retail spaces. The clothing acts as a natural
sound absorber, significantly shortening the reverberation time.
As shown in the illustration below, porous absorbers are effective across most frequency ranges, except for low
frequencies.
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