https://blog.youtube/inside-youtube/one-billion-captioned-videos/
One billion captioned videos - YouTube Blog
one billioncaptioned videosyoutubeblog
https://charitydigital.org.uk/tools--resources/a-simple-guide-to-captioned-videos-9116
Charity Digital - Tools & Resources - A simple guide to captioned videos
We look at how to caption videos across various platforms with our top tips
a simple guidecharity digitaltools resourcescaptioned videos