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Some years ago there was research on noise suppression by picking up a noise and playing it back 180 degrees out of phase. If you played a sound through two speakers connected out of phase, that is so when one cone came out while the other went in, would they tend to cancel? Thus creating a small cone of silence.            

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Also sounding proofing outside going doors and windows with heavy fabric is said to help. Plus having sound absorbing rugs and wall hangs reduces the unwelcomed sounds.

I see one cannot edit previous postings.

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Hi H,

There a couple of us doing this, my friend has tried 180° but it didn't work, much.

I imagine that noise cancelling headphones, suppress street and chat noise, but this is intermittent bangs, which may be more difficult.

We're now thinking about transducers on the windows.

If you go to the post you want to EDIT, click the top 3x dots and see if EDIT comes up.

C.

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