There was a lot of fanfare last week about the wider introduction of speech-to-text as captioning on YouTube, and finally I found a website that explained it! Unfortunately the service is not available on all videos. But, I hear you say, why would a dyslexic individual be interested. Because this is a step along the technical path. Imagine that instead of watching somebody's video, you uploaded a lecture and you then had access to that text! At the moment, from what I have seen so far, you cannot download the wording, and the text quality is very dependent on sound quality. But the principle is there and worth following.
YouTube Speech to text