I understand your frustration...it may be the owners have tuned out the dogs or feel overwhelmed. Some dog owners just dont know how to handle their dogs and barking can be a hard behavior to control if the owners dont have a good idea of how to get a handle on it. It sounds like the dogs dont get much outside time, which means they are frustrated and are releasing their energy by barking - I call it the fish bowl syndrome, they dont get out enough, and dont have jobs, so they fill the need to do something by barking. My suggestion - go over and talk to them. Let them know that the dogs are becoming a nuisance and try not to yell and threaten, just let them know the facts. Suggest they take the dogs to a trainer - sometimes the local humane society will have discounted classes, or that they purchase or rent a dog whisperer video on uncontrolled barking. Your last resort should be the local animal control.
For yourself, keep a log of when the dogs bark and how long as well as the time and day you went to talk to them, that way if you do end up having to call the animal control you will have a record of how long you have suffered. Good luck