Thanks for sharing this. If I may ask, can you share how alt text for videos would work best for you?
If they are videos of say a talking head into the camera and the text is already subbed, it feels redundant to have it again. It might not be relevant to the message to describe the person delivering it but would that make a difference to you?
@chu I’m still wrapping my head around this. If the text is subd, can the screen reader read it? The presenter’s image is probably relevant — i do want to know if they have pink hair or a good outfit