When I hear someone speaking a language I don't understand it always sounds to me as if they're speaking very quickly. But if I ask them to translate what they where saying, or even better, if I start to learn the language then it suddenly goes back to a normal speed. Does this happen to anyone else? The best explanation I could think of is that for some reason when we hear syllables that we don't recognize we assume them to be complete words. What do you think?