Place this clip right after the failed answer in your edit, then follow it with Windows XP Error Sound to underline the mistake, and save Law & Order Dun Dun for a later dramatic reveal rather than stacking the two verdicts together.
关于此声音
This clip is the short, low buzzer that sounds when a contestant offers an answer missing from the board, lasting under two seconds with a flat, blunt tone and no voice or melody. It feels instantly final and awkward, turning a confident guess into an embarrassing miss before anyone speaks. It comes from Familiada, the Polish version of Family Feud, where two families compete to guess popular survey answers.