It's funny, too. I can now tell the difference between freight trains and passengers trains by their sound alone. Without having to figure in the duration of the sound (the freight trains have more cars.) The passenger trains travel faster, so the sound's a bit different.
I've been asked by so many people, my younger sister most recently, if the sound of the trains bothers me. To be honest, it doesn't really. And I don't think that's just because I've gotten use to it (and no, I've never been woken up by a train, but that's not a big deal since I'm such a sound sleeper. Ask any of my roommates past or present about how I react if a fire alarm goes off while I'm asleep!)
I've always liked train travel and I find the sound of a train strangely comforting. The only times I'm bothered by the noise are when I'm listening to music on a low volume because of the time of night (gotta respect the roommate and the neighbours!) The sound of the trains tend to drown it out.