Cobalt Digital Inc 9902-DC-4K Product Manual page 42

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Table 3-1 9902-DC-4K Function Menu List — continued
Timecode
Note:
The timecode function is tied to and considers VBI timecode sources only received on SDI IN A.
Audio LTC controls described below only appear on cards with +LTC licensed optional feature. This feature
allows audio LTC from an audio channel to be used as a timecode source, with conversion to a selected SMPTE 12M format on the
output video.
• Timecode Source Status Displays
• LTC Input Source Control
• Mute LTC Control
• Incoming ATC Packet Removal Control
3-18
9902-DC-4K Function Menu List and Descriptions
Provides timecode data extraction from various
sources, and provides formatting and re-insertion
controls for inserting the timecode into the output video.
Displays the current status and contents of the four supported external
timecode formats shown to the left.
• If a format is receiving timecode data, the current content (timecode
running count and line number) is displayed.
• If a format is not receiving timecode data, Not Present is displayed.
Selects source to be used by card to receive LTC from SDI IN A
embedded audio channels.
Note: COM 1 and COM 2 choices may appear in this drop-down. These
choices are currently not supported by this model.
Allows LTC audio output to mute upon loss of selected timecode inputs.
• When set to Enabled and input timecode is lost audio LTC output mutes.
• When set to Disabled and input timecode is lost audio LTC output is not
muted, with count value being free-run count.
Note: If muting upon loss of a particular input format is desired, set all
Source Priority 1 thru 4 to that particular input format. If this is not done,
the card failover timecode selection may substitute another format choice
for the format not being received.
Enables or disables removal of existing input video ATC timecode packets
from the output. This allows removal of undesired existing timecodes from
the output, resulting in a "clean slate" where only desired timecodes are
then re-inserted into the output. (For example, if both SDI ATC_VITC and
ATC_LTC are present on the input video, and only ATC_LTC is desired,
using the Removal control will remove both timecodes from the output.
The ATC_LTC timecode by itself can then be re-inserted on the output
using the other controls discussed here.)
Note: Set this control to Enabled if Free-Run timecode is to be used. If
incoming packets are not removed, output embedded SMPTE timecode
may alternate between free-run and embedded SMPTE timecode values.
9902-DC-4K PRODUCT MANUAL 9902DC4K-OM (V1.5)