Hi Rocky.
yeah, there is a talking typing tutor in the db. As with the looktellvoiceover tutorial this is because as well as what it does, it also lessons which interact and act as games, and the exercises you've got definitely count that way, so I'll certainly be giving this a db page.
Just a couple of comments on the program.
First I noticed a miner bug. When looking at the exercises list, the menu seemed to scroll off the screen so I missed some choices before the screen scrolled down to them, so likely there is a resolution question here.
Second, I was wondering if or not you were allowed to use the back space key? since it was something I wasn't sure of and might explain why my accuracy rating didn't exactly work out as expected, either that or I was typing before the game finished speaking and so it was only picking up partial input, though checking normally with Nvda things seemed okay.
third, you might consider a progress meter to tell someone how many of a given exercise they've done. The first time I tried the letters exercise I actually quit with escape because I didn't think it was going to end.
It might be nice to have an indication of progress on this somewhere, for example an audio ding when you submit an entry which got higher in pitch the closer to fulfilling the exercise quota you got (togglable in settings).
Lastly as suggestions for the future, it would be comparatively easy to add an extra game or two to this to make entertaining for someone to practice without having to do exercises.
For example, I recall a game we used to play in primary school called shoot the spaceship, this was rather like space invaders accept there was just the one ship that flew left and right getting lower. It was made up of one letter. To fire your gun you had to hit the key for that letter on the keyboard, it'd be very easy to do this in audio by having a repeated spoken letter go left and right and you hit a key to blast it.
another might be a boppit or simon style game with spoken letters, either home keys, above home or the hole keyboard.
You could also have games with substituting sounds for words. For example at the start of the game you could be told that you'd need to type "bob" everytime you heard a ding, or Jane everytime you heard a dong and then be given a list of names with the odd ding or dong thrown in (to make it even more fun you could have more sounds and more substitutions, for example at ten names have a third sound name added, at twenty names a fourth and so on.
You could then have a game where you had to type out a short story in sentence form for example "ding went to the shops and bought a present for dong. He bought her some flowers because dong was fond of flowers, though since Ding was allergic to tulips he avoided those and bought dong some daffodils"
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)