[Loud Sound Warning] My 3DS can do a not-so-fun little trick

Not looking for a fix because it only does this whenever I use the 3DS keyboard or pinpad. Very rarely happens when updating a game too. I just think it's funny and a weirdly specific technical issue.

All other sound works without issues by the way. This only (and always) happens when I use the keyboard or pinpad, with the screeching ranging from "so loud you can hear it from across the house" to "a mosquito buzzing next to your ear" lol