Put it at the end of a beat, just after the action peaks, before the next clip starts. Open with a Vine Boom to land the impact, then let this clip carry the exit, or follow a Dun Dun Dun reveal with it to underline a dramatic disappearance.
关于此声音
Fadin is a brief sound effect lasting under a second, centered on a quick fade. It feels light and unfinished in a playful way, like a moment disappearing before you can catch it, leaving a small sense of drift rather than a hard stop.