Matrox Monarch LCS, User Manual, Page: 54 / 106

42
Chapter 4, Using the Command Center
The following table lists the frame rates (in fps) and their associated Command
Center selections:
¦ Note Prior to connecting your input source, if you select 60/50 as the frame
rate, but your source is only 30, 29.97 or 25 fps, the Frame rate selection will
switch to the source's frame rate ( 30/25 - see the table above) when the source is
connected. The Status page will display the previously selected encoding frame
rate, and not the actual input frame rate.
Target video data rate
Enter the target video data rate for your recording (average data rate). The default
minimum and maximum values (see
Min/Max Target Data Rate ) are suitable in
most instances, however, you can change the minimum and maximum values to
suit your needs. When entering an average data rate, the
Minimum and
Maximum target video data rates are automatically set to 90% and 110% of the
target video data rate, respectively. The maximum average video data rate for
streaming or recording depends on the encoding mode (see
“Mode” on page 37 ).
Monarch LCS uses a variable data rate when encoding.
The maximum selectable video bit rates are as follows:
• 16 Mb/s (streaming or recording) when only one encoder is in used.
• 8 Mb/s (streaming) when two encoders are in used.
• 10 Mb/s (recording) when two encoders are in used.
For a more detailed breakdown, consult the following table:
Source Frame rate Command Center Selection Encoded Frame rate
59.94 or 60
60/50 59.94 or 60
30/25 29.97 or 30
15/12.5 14.98 or 15
50
60/50 50
30/25 25
15/12.5 12.5
29.97 or 30
30/25 29.97 or 30
15/12.5 14.98 or 15
25
30/25 25
15/12.5 12.5
Encoder 1 Encoder 2 Maximum
(Mb/s)
Streaming 16 Mb/s None 16