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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 Gigachad on Saturday June 18, 2022 @01:25AM (#31787439)
New buildings have strict fire separation requirements that pretty much enforces sound proofing. All new build high rises I have stayed in have had total silence.
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Re:Moth wing–inspired sound absorbing wallpaper in sight aft... by jalk on Saturday June 18, 2022 @12:03PM (#31791082)
Seen many buildings where the concrete walls soundproof the rooms but plumbing ducts in bathrooms transmit sound like crazy - as in you can hear conversations from people several floors down. The inspection hatch cover made of thin sheet metal seems to act like a microphone exciting the air in the duct causing the other covers to act like speakers
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