[–] [deleted] 0 points 2 points (+2|-0) ago 

[Deleted]

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[–] TAThatBoomerang [S] ago 

That's some next-level thinking out of the box right there. Or in this case, in the box thinking...

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[–] 6713906? 0 points 3 points (+3|-0) ago 

The effectiveness of the solution depends on what frequencies you need to control. If you can line the side walls of your hallway with acoustic foam or thick tapetries it may help mute sounds reflecting through it.

Also, acoustic absorption within the kitchenette area will help minimize sound that goes down the hallway.

Although impractical, a "curtain" made of heavy futon would probably deaden sound but be difficult and annoying to get past.