[rogerbinns]

Not directly related, but screen readers are very interesting. It is amazing just how fast they can run, sounding unintelligible to most. There is an excellent demonstration in this youtube https://www.youtube.com/watch?v=92pM6hJG6Wo

I wonder if feedback could also be given by such a quick spoken voice (eg describing the scene in front of you as you walk).

[adnama]

Please don't. The whole point of the device is to provide us an extra sense. Words aren't an extra sense - they're just a distraction. I'm always trying to avoid the sightling who insists on narrating the world for me. Please don't strap this annoying person to my wrist.