I think that the original "Dynamic Voice Engine" was created by
Rubble_Maker, for his mission "
The Prey", and was later used by
Bremmer in his mission "
FOs Lament" (simplyfied version used here).
I don't know how advanced the version in the "control_AI script" is tho...
but if you don't know how to extract it from the AI_script, try checking out one of the above missions. :-\