Advice on dealing with a loud neighbor

Aren't other people bothered by this freak? Why not solicit some neighbors to go to management together? Or call the cops en masse.
Typical tactic of the NYPD to imply every officer (even the cubs and yearlings) is busy investigating murders and shootings in times of cut backs.

Building a history sounds like a good idea. If you're the type to exact revenge, purchase a small plastic trash can, fill it 3/4 with water, and tilt it against his door. It's juvenile, but at least he'd know what it'd be like to be on the receiving end of a neighbor's rudeness.

That vehicle that you saw is a MobileCommand Post and is usually manned by one Officer who is only to permitted to leave for personal necessity or an emergency. As for the Officers you saw comparing cell phones why not just ask them for assistance? I don't get how that their inaction was Precinct policy. I'm almost 99% sure that those Officers lighting farts on their post had no clue about your noise complaint.

The lady on my avatar is an "actress" named Jeannie Pepper.

The best, most effective way to deal with a problem neighbor is to go directly to the landlord or management company. You don't need to build up an "official history". If it's a chronic problem, go to the landlord and say so. I'm willing to bet that you would not be the only tenant who's made complaints about this guy. I had a problem neighbor, and my landlord was very effective in dealing with them (something about threatening eviction tends to get people to simmer down). And my landlord is far from being a great landlord. The last thing any landlord or management company wants to deal with are disputes between tenants, so they will crack down very quickly.

My problem is, and I'm not looking forward to summer for this reason, are the loud all-night parties. I mean, it's bad enough on a Saturday, but the last one was on a Sunday night! I had a deadline to meet (which I missed thanks to said party) and a performance the next day. 311 always gives me problems because they expect me to exactly pinpoint the source of the noise, and I can't because my apartment faces the back and faces a brick wall of a storage facility which bounces sound off from everywhere, so there is no way I can personally tell where the noise is coming from. All I know is that I live on the fourth floor and my bed is vibrating, and not in the good way. It gets so loud, that even with the windows closed, I can't hear the TV. I get a better response when I call the 77 directly because I can more clearly explain what the problem is and how the officers can track the sound down, which is something 311 operators won't let me do. Well, during the Sunday party (going onto its eighth hour!) I finally figured at 11 PM that rather stay home and be miserable, I can go for a pizza and see if it has quieted down in the next hour. (HA!) On the way out the door, I ran into a couple of cops and told them about the loud party and they said, "Well, all we can do is ask them to turn it down. We can't do anything. It's all about respect, you know?"

This appalled me. I said, "It's 11 PM on a Sunday night. I've been dealing with this ungodly noise since 4:30, and because I *respect* my neighbors, I didn't complain until now. How about some respect for the fact that I need to sleep and get up in the morning?"

This is appalling. I mean, I know cops can't go shutting down loud parties during the day, but is it true that they have no power to quiet people after hours if the offenders in question do not want to shut up?

Sorry the decibel Cops are busy responding to Murders, Robberies and Shootings, I'll be sure to let them know about the noise complaint after they're finished washing off the blood!