Modern power equipment is much louder than the old belt drive machines. I used to use a 16" rip saw that the only noise it made was the air singing through the blade teeth. My modern table saw has that sound PLUS the high pitched whine of the electric motor. Electric routers are even worse. Given that the photo shows banks of screw machines I doubt it's as loud as could be imagined, but a clatter none the less.
And yes, I have profound hearing loss, but that's my own fault.
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