Place it at the exact cut where he enters or gets named, after a short reaction sound and before an outro song to close the bit, so the sequence reads as setup, callout, then exit.
關於此聲音
This is a roughly ten-second clip built around the name Frederik, delivered as a drawn-out vocal callout rather than a quick shout. It feels playful and slightly awkward, like singling someone out in front of everyone, which turns a normal name into the whole punchline of the moment.