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.