If you have an iPhone, I found a way to convert photos to audio files including screen recordings.
Go to Shortcuts
Click +
Add action
Search for Encode Media (click)
Click media > shortcut input
At this point the screen should say “receive images input from…” at the top and “shortcut input ->” at the bottom.
From here
Click “Nowhere” and check ”share sheet”
Click done
Then click the -> next to shortcut input and check audio only
After that click the search bar at the bottom an look for “save file”
It should add the “Save>encoded media” at the bottom.
This is what the final screen will look like.
From here, rename the shortcut and then when you hit the share button and scroll to the bottom, the shortcuts will appear.
It will save to the files in your iPhone.
Hope this helps.