Wow, I thought Ellie was bad. Her bark is high pitched sometimes and lower other times depending on her mood. She barks out the window quite a bit and she hates the vacuum. She barks at it and bites it. It is really annoying but after reading this thread I guess I got it pretty good. I have wanted to get Ellie one of those trainers (from TV) that says no dog is untrainable to prove them wrong.
It does make you feel like you've gone into insanity though. The only thing that ever works for Ellie when she is barking is to grab her and make her lay on your lap.