DX-2200
– SD/HD-SDI Text & Graphics Inserter – User Manual
Page 83 of 103
6.2 Low Level Text String Update Benchmark Measurements
The Low Level String update first renders the static text to both buffers. Next it updates the changing text
field in the back buffer and then switches buffers without clearing the non-changing text. This results in a
lower frame delay in the display of text. The results are summarized below.
Table 26: Update Rate for Low Level String Commands
Font
Video
# of Characters
Frames to Update
Output
Written
Changing
F001
720p60
20
20
2
F001
1080p30
20
20
1
F002
720p60
20
20
3
F002
1080p30
20
20
2
F003
720p60
20
20
7
F003
1080p30
20
20
4
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