How to stop low-frequency compressor noise coming through walls and floors
Standard wall foam and rubber pads only block high-frequency sounds, leaving low-frequency rumbles to travel directly through structural framing and concrete slabs. This vibration transmission makes it impossible to lower decibel levels or stop the noise from penetrating living spaces, which is why basic soundproofing fails.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
How to stop low-frequency compressor noise coming through walls and floors
- 1Installing sound absorbing foam all over the wallsDid this help you?
- 2placing rubber or cork pads between the housing and concrete slabDid this help you?
- 3installing neoprene washers or sheets between mounting brackets and the housingDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“i've added sound absorbing foam all over the walls and it has helped but a loud rumble still makes it way out. it's around 65 decibels right now with the foam & doors closed..hoping to bring it down closer to 50.”source ↗
Where this came up
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