Abstract: The present invention concerns a clapper device and method for synchronizing the auditory and visual elements in motion picture film production. The device has a standard clapper, a means of receiving timecode from an audio recorder (by wireless transmission or by cable or by some other means), a visual display for indicating a machine readable code indicating the stage of the filming process, onboard processing and storage, and a data entry means. The timecode information and machine code displayed corresponding to the point of time when the clapper is closed are used to synchronize the auditory and visual elements after digitization of the same.