Doesn’t work for people who can’t see.
Doesn’t work for people in environments where the above two are essentially true.
25 minutes is still longer than 10 minutes (transcript, slides would be even shorter although less informative), and I was being conservative about reading speed.
This is not (as) available for a video if at least some component of the lecture requires being able to see
I'm trying 1.5x, but then when he is speaking it is too fast
>skip ahead
I skipped the introduction, but the standstill periods are too short, and you have no way of knowing when something interesting will happen, so skipping ahead entails missing things. This is where a copy of the slides is particularly useful: you can identify those slides you don't comprehend, or of particular interest, and sit through the speaking just for these portions.
It is absolutely incredible how fast some of them have the audio going at. (It also makes any pausing or lag in your application excrutiating. It turns out 10ms being “noticeable” is more a factor of how you interact with an application.
I would expect that the skill does translate to them being able to understand arbitrary speakers sped up more than a regular person could manage. I’d be curious if any HN readers using screen readers could confirm/tell me I’m talking nonsense :)
I use a text to speech program at ~850wpm and I also watch lectures sped up to x4 regular speed. So yes, it does generalize.
Just transcribe it and include the slides! If you can afford the speaker you can afford to make it accessible.