Put this clip just before the reveal in your edit, then follow it immediately with the MLG Air Horn for the payoff. For a longer build-up, place the Dun Dun Dun sound ahead of it to set up the moment in two stages.
關於此聲音
This is a short, roughly one-and-a-half-second rolling sound, a rapid repeated rumble that builds a little tension as it goes. It feels playful and suspenseful at once, like the pause just before something is announced, and it works because the listener expects a payoff after it. Use it to set up a reveal without giving anything away too soon.