It’s a wav file in Jellyfin. I have made sure the file in question has not been corrupted. I’ve also confirmed it’s not a Jellyfin issue as I’ve tested and confirmed that it works in chromium. Every other wav file (or otherwise) works perfectly fine. If it matters, I am using the Arkenfox user.js
Song name: Coming Up Milhouse by Dankmus
sorry, I downloaded the original file from here: https://soundcloud.com/dankmus/c-o-m-i-n-g-u-p-m-i-l-h-o-u-s-e/s-8xNXA
I did share link to a video on imgur that shows the difference between the warped audio and the original audio.
As for conversion, Jellyfin converts every lossless audio file to 320kbps AAC if I’m not mistaken.
Regardless, thanks for the informative reply. I’ll just listen to it offline for now