@konkrit
Well, basically having the cops get to drop by live, yepp… I tried that once.
I once had a Tekkno DJ living in the basement of the house I was living in back then. We would get home from some club around 2 or 3 in the night and then do his own DJing performance until sunrise. Including subwoofers and triggering smoke alarms with a fog machine.
We tried pretty much everything. Then I called the police on a Sunday morning. They showed up 2 minutes after he had stopped his thing.
He'd never open the door, and he'd also put letters back into our letterbox straight aways. Our landlord didn't give a shit.
I failed a complaint with the police on that Sunday morning, and it somehow helped since they apparently were able to reach out to him at some point. It also helped that other people living in the house served as witnesses.
Purely recording the sound however isn't a proper proof, because… well, depending on your microphone and gain setting, how loud had the incident been? It's impossible to tell.