Years ago I did talk to Autocad I am sure just used the inbuilt voice input inside windows. !@#$ was undo. Stuff like "Line" worked. It was actually slow. given the advances in speech recognition should be better now. May have a another play.
yep worked
Enter Command spoke Line
Start of Line
Make sure TV is off etc got some weird stuff happening.
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Slow to use and stops, I used previously speech to text and could teach it commands like !@#$ means something, I think I used stop for enter.