Calling the cops on a noisy neighbor in NYC is pointless unless that neighbor is a business. The cops may pay a visit, but it the person starts making noise again, they can, they will, and the cops will not force the issue. They'll say that's for the landlord/condo association/coop board to sort out. Dealing with those entities can sometimes be extremely difficult, and can take a long time to sort out. A landlord can't evict someone without really good cause, and even then it can take a long time, during which the tenant can keep renting out over and over.