New answers tagged sound-proofing
I wouldn't completely rule out sounds getting through the floor, and the walls via the air. But the door is certainly significant,and you're in the right track with sealing it. Is it solid wood or hollow? If the latter, filling it with foam filler might help, though the cardboard honeycomb in such doors may make it difficult or impossible. There are self ...
You won't be able to cover the bass with anything you put up, short of a wall. Depending on how loud it gets the vibrations of heavy bass are deep enough to where it can be heard inside through many walls. Best bet, ask them to lower the volume/bass or call the law enforcement to have them turn it down.
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