User Manual

Live Capturing with External Timecode
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External timecode is especially useful for live events, dramatic multicamera shows, and video
material coming in on routers that do not support timecode through normal RS-422
communication. You can start editing immediately after the shoot without waiting to capture
from the backup reference tapes.
If you are capturing 24p film, however, you need to account for the pulldown phase, which
allows for 24p capture to have the same behavior as a video rate. Your selection in the Set
Pulldown Phase of Timecode (A, B, X, C, or D) area in the Film and 24p Settings dialog box
determines what type of pulldown the system uses during the 24p capture. Only non-drop-frame
timecode is supported with the Pulldown Phase of Timecode option.
Setting IN and OUT points is especially useful if you are taking a feed from a source based on a
time-of-day timecode generator. Your Avid editing application begins to capture when the time
of the external timecode source matches the IN point, and stops when the external timecode
matches the OUT point.
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You can log an event ahead of time and it automatically starts recording that signal when the
internal clock or external LTC arrives at that timecode. For example, if you log a clip at
14:00:00:00 to14:30:00:00 sometime before 2:00 pm, the capture starts at 2:00 pm and ends at
2:30.
To capture with external timecode:
1. If you are capturing 24p film, in the Film and 24p settings dialog box, select Set Pulldown
Phase of Timecode 00:00:00:00.
2. Select a pulldown cadence that matches the pulldown cadence of the incoming signal.
For more information, see “Setting the Pulldown Phase” on page 149.
3. Click OK.
4. Select Tools > Capture.
The Capture tool opens.
5. Click the Toggle Source button until the No Deck icon appears.
Toggle Source button showing No Deck icon in the Capture tool
6. Click the TC Source menu, and select LTC Input.
The menu contains two other choices:
- Internal: Uses internal system timecode.