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Old 01-21-2021, 08:06 AM
MikeBmusic MikeBmusic is offline
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Join Date: Aug 2013
Location: On the Mass/NH border
Posts: 6,439

Originally Posted by Chipotle View Post
But even the high-density stuff allows sound waves to pass through. That's what attenuates them. So you need "holes" of a sort. If the sound waves don't go through at all, they are reflected, which is exactly the problem we are trying to prevent.

My guess is that memory foam isn't sufficiently "porous" to attenuate the sound energy like you want. It may absorb some but not nearly as well as the standard panel materials.
No, what attenuates the sound is absorption by the material, which actually converts it to heat. More/larger 'holes' (greater porosity) lets the sound waves go through with less absorption.

My music:

2017 Taylor 114ce-N
2012 Taylor 310ce
2011 Fender CD140SCE
Ibanez 12 string a/e
73 Epiphone 6830E 6 string (made in 71?)

72 Fender Telecaster
Epiphone Dot Studio
Epiphone LP Jr
Chinese Strat clone ($25!)

Kala baritone ukulele
Seagull 'Merlin'
Washburn Mandolin
Luna 'tatoo' a/e ukulele
antique banjolin
Squire J bass
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