Sean’s suggestion is a good one.
I’d like to make another one. Actually, Sean taught me this one. 😉
Do what’s easiest for you.
Think about it.
Which do you think will have the most impact? Five videos or 10 audios?
In the early days, quality in quantity may make more of a difference to your perceived expertise.
If you have 50 audios, and you want to make videos, then even if it takes you awhile to do each one, you’ll still have a lot of content on your site or the platform that you’re using.