TITLE
    Final Cut Pro: How to Calibrate Serial Timecode
Article ID:
Created:
Modified:
25154
6/7/00
6/14/00

TOPIC

    When capturing video with timecode from a deck using Serial Device Control, it is crucial that users adjust for the offset between the captured video and the captured timecode. This article describes how users can determine the offset, and where in Final Cut Pro to enter it. This information can also be found on page 118 of the Final Cut Pro 1.2 manual.


DISCUSSION

    During video capture, the timecode and video signals are sent separately from the video deck to the computer. Because the signals are separate, they can arrive at different times, which causes incorrect timecode values to be recorded. You calibrate your system by entering the amount of time by which the signals are offset from each other.

    Note: You need to do this each time you change decks or cables.

    Determining the Offset

    Step One

    Capture video from a tape with the timecode visible in the frame (window dub), or with the timecode display option for your deck turned on.

    Step Two

    Compare the timecode value recorded in the captured movie (the current position timecode field) with the burned-in timecode on the video frame.

    Step Three

    Open the Edit menu and choose Preferences.

    Step Four

    Enter the difference in the Timecode Offset box, in the Device Control tab in the Preferences window. If the timecode position in Final Cut Pro for a frame in the captured movie is greater than the burned-in timecode value, enter a negative number. If less, enter a positive number.


    Figure 1 Closeup of the Timecode Offset Field in the Device Control Preferences Tab

    Step Five

    After following Steps 1 through 4, it is a good idea to capture a few more clips and compare them as described in Steps 1 and 2 to confirm that everything is working properly.


Document Information
Product Area: Apple Software
Category: Final Cut Pro
Sub Category: General Topics

Copyright © 2000 Apple Computer, Inc. All rights reserved.