today I updated the typewriter script from Bassam Kurdali.
It now enables to have more text chunks in one text object and to swap them, and it has a randomize effect, which looks good during typing. Basically you should be able to do all subtitles for your video with one text object and one text file inside blender.
addon is now here:
example file here:
the original script with video explanation is here:
if you like this addon, or any other of the addons I contribute to, you can donate here: