Place this clip right after the reveal in a reaction edit, then follow it with a wrong answer game show cue if the fake gets rejected, or finish with a huh reaction when the claim still needs questioning.
关于此声音
A 4.5-second spoken clip built around the French phrase “Pas du vrai”, delivered as a flat denial that something is not the real thing. It gives a listener a blunt, slightly amused feeling of calling out a fake, like the reply you send when an imitation is obvious and nobody is fooled by it at all.