Ignore the guy who said they expect you to have talked to them thats nonsense. if you talk to them and it doesnt change ( which it wont) then they know who to come after or get revenge on when the council starts legal action against them.
Set the ball rolling straight away report them to the council and they will tell you the procedure, it will eventually result in some recording equipment in your property, you set some recordings and then when they evaluate them if its too loud they will take legal action against these selfish and ignorant dog owners.
It could end with eviction or removal of the dogs, do not suffer in silence take action immediately, noise pollution and barking dogs etc ruins lives, you should have peace and quiet at home.
I have been a victim of this myself and i took action.