https://bugs.winehq.org/show_bug.cgi?id=44824
--- Comment #4 from M.K. mk+winehq1803@pimpmybyte.de ---
Have you tried doing 'winetricks -q speechsdk'
Nope, and I don't currently have time to try it either. Also note the SDK worked perfectly. Using the SDK, I was able to created an EXE that spoke as expected on a Windows 7 computer which did NOT have the SDK installed. The desktop voice bug thus is not related to the SDK.