With no confirmed source, artist or original context attached to this recording, the clip has spread purely as a generic confusion reaction on user generated soundboards. Its appeal is its universality, since the line fits almost any baffling image, video or message without needing setup or explanation. Short reaction lines like this became staples of meme editing because they can be dropped into unrelated content and still read clearly, and this one remains popular for moments where bewilderment is the entire joke rather than part of a longer scene.
關於此聲音
A short confused voice clip saying I don't know what this is, used as a quick reaction for baffling, unexplained or out of context moments online.
This is a brief, bewildered voice reaction lasting just under a second, built around the flat, genuinely puzzled delivery of the line I don't know what this is. There is no music or buildup, just a plainspoken moment of confusion that lands instantly. The humour comes from how honest and understated it sounds, as if the speaker has given up trying to explain what they are looking at. It works as a perfect verbal shrug, letting a video, image or message speak for itself while the clip voices exactly what the audience is already thinking.