Earlier quoted context omitted.
I've been an Audible subscriber for a few years and I listen to most audio books at between 2 and 2.25x speed. The Android app alows you to adjust it right up to 3x and in general it's still perfectly comprehendable at the individual word level even at that speed.
you have to be careful how you structure your sentences, or at least I should pay more attention. There is no way triple speed was comfortably understandable. 2 to 2.25 would be a lot already. 3x is probably a ludicrous maximum that no user should could complain about.
Blind people tend to listen to things on fast speed because they've had more practice. I can imagine blind people listening at that kind of speed.
https://rdouglasfields.wordpress.com/2010/12/14/extraordinar...
> New research presented at the Society for Neuroscience meeting in San Diego shows that blind people can understand speech at ultrafast rates, well beyond what a sighted person can comprehend.