I'm sorry to hear this. I live in a condo complex which has 3 floors and I'm on the 2nd floor. Over the years I've dealt with many noisy neighbors. We have rules that we have to follow here and after 10pm you can't be noisy. You also shouldn't talk outside below any one's windows either. Luckily at the moment no one lives above me and the man that lives below me is very quiet. I too would think that your apartment would have some noise ordinances.