How to render only audio from command line? [Windows 10]

Hi guys,

Either no soul on earth has answered this yet on the internet, or it’s just a link missing me on Google. How do we render ONLY audio from a .blend file? I know there is an option in the GUI that says “Render audio…”, but how do we do this from command line?

I want something similar to “blender -b file.blend -a”, which is for rendering animation, of course.

Thank you,
The Flea