Place it right after a character enters the room and before the scare hits, then follow it with the teleport sound for a sudden exit and finish on the wtf boom for the payoff moment in the edit sequence.
关于此声音
This is an 11-second clip of Balloon Boy's high, childlike giggling laugh, repeated in a bright animatronic voice that sounds playful at first. It gives listeners an uneasy, creepy feeling because the innocence quickly feels threatening. It comes from Five Nights at Freddy's, where he is the balloon-holding animatronic known for this laugh.