Cobalt Digital COMPASS 9082 HD_SD Frame Sync - Manual (Page 39)

9082-OM (V4.4) 9082 PRODUCT MANUAL 3-13
Operating Instructions
9082 Function Submenu List and Descriptions
(continued)
• Minimum Latency Control
Minimum Latency Frames Control
When Framesync is enabled, specifies the smallest amount of latency
allowed by the frame sync (latency measurement in output video frames).
The frame sync will not output a frame unless the specified number of
frames are captured in the buffer. The operational latency of the frame
sync is always between the specified minimum latency and
minimum latency plus one frame (not one field).
(Maximum range is 0 to 32.)
Note: Due to card memory limits, the maximum available Minimum
Latency Frames is related to the output video format.
For example, with a 1080i59.94 output, the maximum allowed
setting is 5. For a 1080i film (23.98) output, the maximum allowed
setting is 3. Conversely, greater maximum settings are allowed for
SD formats such as 525i59.94, where the practical maximum limit
is 13.
When using this control, be sure to check the Framesync Status
display as follows:
• Latency frames selection within limits.
• Latency frames selection exceeds limits.
• Input Video Mode Fixed Delay Control With Framesync mode set to Input Video, allows output video to be
delayed a fixed amount from that on the input. Vertical and horizontal
delay controls, as well as frame latency, automatically track in step with
the setting here.
Note: Due to card memory limits, the maximum available Minimum
Latency Frames is related to the output video format.
For example, with a 1080i59.94 output, the maximum allowed setting is 5.
For a 1080i film (23.98) output, the maximum allowed setting is 3.
Conversely, greater maximum settings are allowed for SD formats such
as 525i59.94, where the practical maximum limit is 13.
• Video Delay Display Displays the current input-to-output video delay (in msec units) as well as
in terms of Frames/fractional frame (in number of lines).
• Framesync Status Display Displays the current framesync status as follows:
• Framesync status OK.
• Framesync source off or not connected.
• Improper or missing framesync reference.
• Latency frames selection exceeds limits.
Note: See Minimum Latency Frames Control above for more
information about this message.
Table 3-2 9082 Function Submenu List — continued