[victorgte]

Get a small diary and write down every date and time it takes place. Duration too as that counts for a lot.
Record on your phone or other device a few occurances so that video evidence backs up your diary.
Gathering of evidence is your best way of getting a quick result.
You might get lucky and record a really noisy session and you can invite him round to view it and ask his opinion especially after that first conversation you had upon moving in.
No one should have to suffer that kind of persistent stress.