Put it at the very start of the edit, ahead of the main footage, then follow it with Law and Order Dun Dun to mark the turn into the story, and keep a second sting for the closing title so the opening and ending mirror each other.
關於此聲音
The Titulos clip is a short two-second television titles sound, named for the on-screen titles it accompanies. It feels brief and expectant, giving a listener a clear sense that a segment is about to begin, without lingering or pulling focus away from what comes after it.