Since Zorn was originally built for the MinPluto frontend project, there are scenarios where the video source has no audio to get higher quality options. If you're in a scenario where the video source is missing audio, but you do have the audio itself, you can add that audio source to the video player. A separated `<audio/>` element is used, this will use a sync function in JavaScript to make sure the video and audio are synced. As before with the video source, it can be local or remote.