vidian hear in factory

Creeping ahead, he saw Vidian unaccompanied at the bottom, pacing down the long aisle between the conveyor belts out of the woman's sight. Skelly's heart pounded.[...]
"You can come out now." The loud voice was the one Skelly had heard on a dozen management recordings. "I can hear you very well, even in a place like this."

A New Dawn, ch. 24, pg. 463