Black Box EMERALD DESKVUE User Manual page 30

CHAPTER 3: APPLICATION
ITEM
Preferences
30
TABLE 3-7. TRANSMITTER SETTINGS (CONTINUED)
DESCRIPTION
Configure the transmitter video and USB settings. Configure the video quality, video
optimization, USB HID configuration, and EDID (video resolution) as shown below in
Figure 3-31:
Video Quality:
Transmitter settings use a progressive compression algorithm with five stages to
reduce the bandwidth and increase the frame rate while sacrificing quality. At
stage five, which uses the best compression, you may achieve a higher frame rate
and lower bandwidth, but the video output may show blocks of pixilation or screen
artifacts as those parts of the screen are not being repainted because they didn't
update. At the highest setting of stage one, which is best quality, you will not see
these screen artifacts as much, but you will use a higher bandwidth with reduced
frames potentially based upon your application. Frames are not always reduced; it
just depends on the source and network.
Options:
1. Best Quality Video – lossless compression, pixel-perfect mode of operation. This
generally needs a dedicated network to ensure no frame loss.
2. Visually Lossless Compression – high quality visual image. There is some
compression on stream to reduce bandwidth to allow operation on standard
corporate networks. Compression does not vary based on available network
bandwidth, so it may lead to some dropped frames during network congestion
periods.
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FIGURE 3-31: TRANSMITTER SETTINGS SCREEN
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