Read only if you are interested in my struggles to get the release working]
I tried many timesover the years and failed every time.
This is due to simple problems:
a) TT has basically no documentation available on the internal workings of their modified voices
b) TT has some restrictions built in that I only discovered lately
c) Editing Loquendo libraries and lexicons is a real pain - at least for me, the guys at Nuance seem to do better
All previous attempts were based on creating a new voice, which turned out to be virtually impossible.
Since I could not find a working download for a compatible Grace or Alan voice (the new Australian Loquendo voices TT won't support), I could only try to modify an existing voice.
Susan was out of the question so Kate had to die and was reborn.
I searched the net for compatible libraries and lexicons, modified what was needed and removed the british parts.
And failed again.
You have to know that TT only supports voice lexicons in languages that are available as a language for the menu/TT itself and from Nuance as well.
On top of that you are limited for the lexicons to what TT thinks is supported, which is only US and GB english.
Also TT thinks creating a file that contains all correct pronounciations for the map is a good idea - well only if you don't change a thing, if you do a road becomes a court, a Highway a place and so on...
The problem was solved in the end and the result was a Kate that finally was able to pronounce at least 100% better than the original.