Sound Absorption Materials Chart
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When it comes to sound absorbing materials also called sound absorbers or sound diffusors they are usually soft light fluffy or porous which enables them to better absorb an echo.
Sound absorption materials chart. Absorption coefficients of common materials. In terms of the most popular manufacturers of this product one brand has stood above the rest for quite some time. I decided to investigate exactly what it is and have presented everything i learned in a simple to understand format in this post. Both of the products i ve linked to are black.
Acoustic fencing and barriers. Soundproofing for trade contractors developers. Schools education soundproofing. Acoustic absorption is of particular interest in soundproofing.
Absorption coefficients www akustik ua frequency hz material thickness 125 250 500 1000 2000 4000 masonry walls rough concrete 0 02 0 03 0 03 0 03 0 04 0 07 smooth unpainted concrete 0 01 0 01 0 02 0 02 0 02 0 05 smooth concrete painted or glazed 0 01 0 01 0 01 0 02 0 02 0 02 porous concrete blocks no surface finish 0 05 0 05 0 05 0 08 0 14 0 2. Studio cinema soundproofing. On the other hand sound absorbing materials can t stop sound from coming in or out. I m sure by now you have come across something called an nrc rating during your soundproofing journey.
The trademark soundproofing mlv was pretty tough to beat for a long while in terms of quality. Materials absorption coefficients by frequency 125 250 500 1 000 2 000 acoustic tile ceiling 80 90 90 95 90 brick 03 03 03 04 05. Nowadays though there are other comparable products such as the one soundsulate makes. Fiberglass board 25mm 1 thick 0 06 0 2 0 65 0 9 0 95 0 98 fiberglass board 50mm 2 thick 0 18 0 76 0 99 0 99 0 99 0 99 fiberglass board 75mm 3 thick 0 53 0 99 0 99 0 99 0 99 0 99 fiberglass board 100mm 4 thick 0 99 0 99 0 99 0 99 0 99 0 97 open brick pattern over 75mm 3 fiber 0 4 0 65 0 85 0 75 0 65 0 6 pageboard over 25mm 1 fiberglass bo 0 08 0 32 0 99 0 76 0 34 0 12.
Room sound absorption and absorption coefficients for common materials like plaster walls brickwork plywood panels etc. While products made of sound absorbing material can soften up the surfaces of the room they are also designed to contribute to the aesthetics of the room. More specifically they ll reduce the echoing and reverberation of sound already present in the area.
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