Place it right after the confusing line in a reaction edit, then follow it with Bruh for a second reaction before cutting to Emotional Damage as the final payoff for the scene.
關於此聲音
This is a spoken Arabic line in Egyptian dialect asking, politely but pointedly, what someone is saying, lasting about 19 seconds. The delivery turns a simple question into a moment of baffled disbelief, funny because it sounds like a genuine interruption rather than a rehearsed line, and it works best when the confusion feels real.