Place it right after a sweet baby moment in your edit, then follow it with a baby laughing meme to bring back the cute theme, and keep a goofy ahh sound for the next beat so the joke keeps escalating.
關於此聲音
This is a roughly one-second clip of baby-style babbling saying gugu gaga, pushed into a loud, harsh, distorted earrape treatment. The familiar infant sound turns jarring and over-the-top, which makes it feel funny and startling rather than cute. It lands best as a sudden shock gag, where the contrast between the soft babble and the abrasive blast does the work.