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- May 22, 2023
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good looking out!That might be a challenge. There is a product called Linacoutsic, used for lining the inside of ductwork to prevent sound from traveling though them. It's good stuff and easy to work with. Your local HVAC supplier can probably get it. Makes good bass trap stuffing too if you layer it.
Linacoustic RC
Fiberglass duct liner with a glass mat airstream surface coated with antimicrobial coating (Service temp: 250°F)www.jm.com
that ledge is one of the rudest reflecting spots, too. on the red face, I'll be mounting acoustic foam to try and cut down on some of that behavior but otherwise, the height from floor to ceiling under the dropdown is like 7ft 1in so doesn't leave a whole of room do to anything else inside the office to deal with sound coming through the plenum. The plenum is wrapped in R20 from what I could tell while pulling the ethernet cabling, though, so there's some sound reduction in there.
