This is a comments thread for the following album: https://downloads.khinsider.com/game-soundtracks/album/nintendo-3ds-background-music
They aren't, these are recorded in Citra Emulator using the video dump feature and the Audio LLE (multi-core) setting. The reason you hear background noise is probably because the music is not meant to be played at high volume. (I had to increase the volumes of the tracks, they sounded too quiet.)It seems as though these are audio line-in recordings.
I feel youThank you so much for uploading this. Makes me want to cry every time I hear these songs.
ARE YOU SURE ABOUT THAT?Sadly, the quality is so terrible that it's unlistenable.