Greasy Fork

Is it possible to add download all?
for audio tracks at once

Yes probably, but I prefer not to for multiple reasons. This would generate too many requests in a short time, this is the best way to get your account banned. And the audio files must be stored in the browser's memory before being put in a zip, which would crash the tab in many case.

Hello,
why does it download audio with only 2 channels, shouldn't it be 5.1 audio, or can it be set somehow?