answer:Hi, and welcome to Fluther. Your options to limit sound are: 1. Control it at the source (unlikely in this case, I suppose… but you could burn down the bar). That’s not a recommendation, but I’m trying to get all the options on the table here. 2. Deaden the sound before or as it enters the structure. The windows and walls apparently don’t do a good job now, but you could consider tapestries or other thick wall hangings on the walls closest to the bar, for example. (Another option, to plant a row of fir trees between you and the bar and wait 20 years for them to mature, is probably not what you’re looking for. But it would be pretty effective.) If you can stand the lack of light, hanging heavy towels over the windows might help. 3. Use a sound source that overcomes the noise from the bar but is less of a nuisance to you. In the summer time the AC does that for you, but you don’t have a similar noise generator for this time of year. But you could, presumably. For example, you could play your own music, television, etc. You might even be able to run your AC unit on “recirculate only”. 4. Use a tone generator that produces “equal and opposite” sound frequencies so that your tone generator’s sound and the bar’s sound would cancel each other and you’d hear… nothing at all. Unlikely that the bar’s sounds are regular enough to accurately cancel in that manner. What kinds of sounds are you having trouble with, and what are the chances (short of the burning thing in #1) that the sound could be reduced at the source?