Which is the difference between Warp Voice type and ECS voice type?. Is it only the possibility to install in a partition different from c: or there are some other improvements?
IIRC the eCS version is nothing but the same version of Warp4 GA plus including the accumulated fixes.
Correct.
I cannot tell if VT actually still is actively supported by IBM - but for the OS/2 | eCS version I doubt.
The VoiceType product has been dead for a long time. The sucessor called ViaVoice was only available for Windows. What from I've heard, recognition rates where quite improved even without training and adding new vocabulary was easier. It has been rumored that somewhere in a drawer at IBM, an OS/2 version lay around. But it never saw the light of day.
As for VoiceType, I had it working very well once on Warp 4, but then I didn't use it for a
long time. When I did try it again on eCS, I couldn't get it to connect to the driver so to speak, i.e., the sound recording via the microphone didn't work correctly. All in all, the results
heavily depend on the quality of both the hardware and the driver. Soundblaster cards didn't work well, but my trusty old Terratec 32/96 ISA card produced very good results.