Hi,
I have installed SAPI voices for windows in wine.
I also have installed ANKI which is a flash card program under linux.
Anki can use text for to speech in native windows so the windows version it can communicate with SAPI on a windows machine.
I do not know if ANKI for linux has the code to talk to SAPI for windows but if it has I was wondering if it is possible to somehow make Anki talk to SAPI in wine?
Here is the manual for tts in anki