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58 DSR Switch Installer/User Guide
• The Block Noise Threshold sets the minimum color change that will occur in a single video
block. Increasing the value will reduce the network bandwidth. Decreasing the value will make
the size of these artifacts smaller.
• The Pixel Noise Threshold sets the minimum color change in a single pixel. Decreasing the
value will reduce the number of low-contrast artifacts, but will increase network bandwidth.
See “Adjusting the View” on page 53 for information about changing the color depth.
Automatic video adjustment
NOTE: You may also select Tools - Automatic Video Adjust from the Video Viewer window menu or click the
Automatic Video Adjust toolbar icon to automatically adjust the video.
In most cases, you will not need to alter the Video Settings from the default. The system will
automatically adjust and use the optimal video parameters. The DSR web server performs best
when the video parameters are set such that no (
0) video packets are transmitted for a static screen.
You may easily adjust your video parameters to ideal settings by clicking on the Auto Adjust Video
button in the Manual Video Adjust dialog box.
NOTE: A green screen with yellow lettering may appear during auto-adjustment.
Refresh image
NOTE: You may also select View - Refresh from the Video Viewer window menu to refresh the image.
Clicking the Refresh Image button in the Manual Video Adjust dialog box will completely
regenerate the digitized video image.
Video test pattern
Clicking the Video Test Pattern button in the Manual Video Adjust dialog box will toggle a display
of a video test pattern. Click the Video Test Pattern button again to toggle back to a normal
video image.
Adjusting Mouse Options
The Video Viewer window mouse options affect cursor type, cursor mode, scaling, alignment and
resetting. Mouse settings are device-specific; that is, they may be set differently for each device.
NOTE: If the device does not support the ability to disconnect and reconnect the mouse (almost all newer PCs
do), then the mouse will become disabled and the device will have to be rebooted.
Cursor Type
The Video Viewer window offers five appearance choices for the local mouse cursor. You may
also choose no cursor or the default cursor.