Put it just before a scare in your edit, letting the greeting introduce the character, then cut straight to the FNAF Jumpscare Scream for the payoff, with no other sound in between.
關於此聲音
This three-second clip pairs Balloon Boy's bright, childlike 'Hello' with a quick 'Hi', separated by a short pause. The friendly words sound harmless at first, then turn eerie because the speaker is a hostile animatronic, giving listeners a mix of nostalgia and unease. It comes from Five Nights at Freddy's 2, the 2014 horror game where he appears.