Take a step back. Does she have any family who visit? Or friends? A quiet word would be better than calling in the cavalry!
Failing that, talk to her again and explain how it’s impacting on your family. Make her aware, very tactfully, that you don’t want to take any official action. Appeal to her better nature.
Show some sensitivity, the chances are that she knows fine well her hearing is shot to pieces and possibly the rest of her body. How would you feel in her shoes?
Edit: I know full well how annoying noise can be. I had a house that wasn’t properly soundproofed. As well as a flippin’ baby crying 24/7 I could hear them having sex/him having a danger w*nk.