that moment when...

you had inserted a DVD into the DVD player, but still had the TV source set to a TV channel which you were momentarily watching.

And then you hear a strange noise like muffled music... where did that come from? Must be a car driving by outside with their radio on very loud? Then a moment later you hear a roaring noise like a gigantic aircraft, so you run to the window and look outside, somewhat nervous... until finally realizing that the sound isn't coming from that direction after all.