Doni, I just recently sold my tool and die shop where we had state-o-the-art machining centers, both mills and lathes; we had welding operations, air compressors and all this makes for a lot of noise. Rather than voice commands it seems the wave of the future for machine shops is commands taken directly from scanning or receiving drawings from engineering.
One of cksla posts yesterday mentioned a new IBM chip that used a new copper backed wafer. Our shop, Production Tool & Mfg., in Tigard, OR was sought out by Novellus 3 years ago to work on that super secret development. If it is the same program, we were building equipment to be used in creating a method to get copper one molecule thick on the "damaged" backside of a silicon wafer to improve memory.
Anyway, I think machine shop noise wold prohibit voice commands mentioned in your post. Lois