Weekend update from my living room: I finally dialed in a small home theater, and the sub woke up a bunch of things I didn’t know could make noise—interior door starts buzzing on certain notes, the window panes chatter during action scenes, and even a picture frame hums a little. I’m not trying to rebuild the room, just want to kill the rattles without ruining the vibe. Has anyone actually fixed low-frequency buzz from doors and glass? What worked first—seals, adding mass, swapping to laminated glass, or just moving the sub?
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Low-frequency rattling of doors and glass
Low-frequency rattling of doors and glass
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Skimming this thread as a neutral bystander: a quick way to triage is the “finger test” and painter’s tape. Play the scene that rattles, gently press on suspect spots (door center, pane edges, picture frames). If it stops, you’ve found the loose interface. A bit of foam tape behind frames, felt on cabinet doors, and tightening hardware often kills half the noises. Then chase the big paths—door undercut and window gaps. Also try a 5 dB trim on the lowest EQ band and a small crossover tweak; you keep impact without exciting every resonance in the room.
The problem you described is quite serious. If you only deal with doors and windows or only deal with subwoofers, you may not achieve a good effect. You need a more comprehensive treatment. If you have any questions or are bored, you can use https://deepora.ai/ to communicate.
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I chased the same gremlins for months. What moved the needle was stacking a few simple steps: swapped a hollow-core door for solid-core, added perimeter gasketing and an adjustable drop seal, tightened hinge screws into the stud, and cushioned the strike so it doesn’t chatter. For the window I used an interior insert (bigger air gap helps) and a thin bead of glazing putty to stop the pane from rattling in the sash. Decouple the sub with an isolation platform and re-run placement/phase—corner loading makes rattles worse. I sanity-checked my plan with newyorksoundproofing.com since they deal with doors/windows a lot; their “airtight + mass” mantra was right on. Start with the door and sub isolation—you’ll hear a difference fast.