Create A Transcript You now need a text file of the actual words to your audio/video, and in the proper format (SubRip, aka .srt).

Roll your own subtitles An .srt file is simply a text file formatted in a specific way. You can create your own subtitles and add them to your movies, as described above.

YouTube allows you to easily create the SRT files needed to better engage with your viewers during silent autoplay ...