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A comment on Moth wing–inspired sound absorbing wallpaper in sight after breakthrough. Parent comment

Re:Moth wing–inspired sound absorbing wallpaper in sight aft... by postpawl on Friday June 17, 2022 @08:48PM (#31786317)
Usually thick insulation because you need mass to block bass.

Like rockwool: https://www.rockwool.com/north-america/products-and-applicat...

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