Put this clip in the build-up section before the scare, not over dialogue or action. Follow it immediately with the FNAF Jumpscare Scream for the reveal, or swap that ending for a danger alarm sound effect meme cue when you want a fake-out instead.
关于此声音
This clip is ten seconds of heavy, muffled breathing heard from inside the Freddy Fazbear mask, with a slow, confined rhythm. It feels tense and claustrophobic, like hiding while something dangerous stands close by. It comes from Five Nights at Freddy's 2, released in 2014, where wearing the mask is used to fool animatronics.