a calibrating device and a recorder
1Sound reinforcement system — A sound reinforcement system is an arrangement of microphones, electronic signal processors, amplifiers, and loudspeakers that makes live or pre recorded sounds usually music or speech louder, or that distributes the sound to a larger or more… …
2Video assist — Actor Gunner Wright appears on a video assist monitor during the filming of the 2011 movie Love. Video assist is a system used in filmmaking which allows filmmakers to view a video version of a take immediately after it is filmed. Originally a… …
