The male voice is horrible.
Even after two years, I still find myself having to listen to the slow versions and then using reasonable deduction (as in "this word I think I hear doesn't make sense, what does?") to finish sentences sometimes.
In "normal" mode, this voice often sounds like someone is holding a gun to his head threatening to shoot if he doesn't say the sentence in under two seconds.
It's really frustrating. If it wasn't a computer voice, I would really hate this "guy."