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When “Free-Run” is selected, then the time code output will be generated inside the SP-14, but can be
reset to any start value by the user, as required.
TC Load Trigger Mode
This menu item is used to select how the reload process happens. “Free-Run Manual” means the output
is changed immediately on demand whenever the user chooses “Time Code Load Now” in the menu.
The 'Synchro' options under “TC Load Trigger Mode” require the current video source to also have time
code attached, so when the input time code matches the “Timecode Input Trigger” value, the output
time code will be the “TC Output Load' value. The different options provide several alternative ways of
specifying how much continuous pre-run time is included in the output time code before the trigger point
is reached:
- “Synchro Auto” will start pre-run as soon as the input time code has been stable for 5 seconds
- “Synchro Prerun” will start pre-run at the offset entered by the user for the “Timecode Prerun Period'
- 'Synchro Manual' will wait until the input time code has been stable for 5 seconds and then the user
can start pre-run at any point until the trigger time by choosing “Time Code Load Now” in the menu.
TC Input Trigger
Set time code input trigger value for synchronisation of the internally generated time code with the time
code provided by the video source.
TC Prerun Period
Set output time code pre run period.
TC Output Load
Set the output time code start value, which is then triggered either manually or through the
synchronisation described above.
TC Load Now
Press this button to start the time code output with the “TC Output Load” value manually.
TC Drop Frame Mode
This mode is used for 29.97 or 59.94Hz output formats, to specify if drop-frame compensation is to be
applied or not.
TC In Frame Count Max
Specifies how many frames per second to expect on the input time code - which is important to know for
the synchronisation calculations. Options are :
- “Detected”, i.e. what can be seen on the incoming time code
- “Format”, i.e. what it should be for the input video format
- “24”, “25”, “30”, i.e. user override to one of 24, 25 or 30Hz. For this purpose, 23.98 and 29.97Hz are
equivalent to 24 and 30Hz respectively. Also, progressive 50Hz and 59.94/60Hz video formats use the
field flag as the lowest frame count bit, so use the 25 or 30Hz setting.
TC Out Frame Count Max
Specifies how many frames per second to generate on the output time code. If it is intended that the
output video is to be later replayed at a different speed, then the correct time code can be generated
here. Options are:
-“Format' which uses the output video format to derive the frame count
-“24”, “25” or “30”, i.e. user override to one of 24, 25 or 30Hz.
TC Processing Delay Offset (ms)
The delay of the time code information through the system can be fine adjusted, e.g. to compensate for
video to time code delays within the material and/or processing chain.
TC Input Format
Input options are auto, embedded LTC and embedded VITC. Auto accepts either LTC or VITC, but
takes the first seen (lowest line number) if both are provided. Settings are stored per input channel. This
applies for SDI video input channels only. Analogue input channels can only carry VITC information.
