Chatsworth Products KVM Over IP - Manual (Page 24)

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The most suitable compression level should always be seen as a compromise between
the network bandwidth that is available, on your video picture to be transferred, and on
the number of changes between two single video pictures. We recommend using a
higher compression level if the network bandwidth is low. The higher the compression
level the more time is needed to pack and unpack the video data on either side of the
connection. The compression quality depends on the video picture itself, e.g. the number
of the colors or the diversity of pixels. The lower the compression quality, the more data
have to be sent and the longer it may take to transfer the whole video picture.
If level 0 is chosen the video compression is disabled, completely.
The option "Video Optimized" has its advantages if transferring high-quality motion
pictures. In this case the video compression is disabled completely and all video data is
transferred via network as full-quality video snippets. Therefore, a high amount of
bandwidth is required to ensure the quality of the video picture.
o Color Depth: set the desired color depth. You may select between 8 or 16 bit for Video
Optimized/compression level 0, or between 1 and 8 bit for compression level 1 to 9. The
higher the color depth, the more video information has to be captured and to be
transferred.
Options - Encoding – Color Depth Menu
Note: If displaying motion pictures on a connection with low speed you may achieve an
improvement regarding the video transfer rate by lowering the color depth and disabling the
option "Video Optimized.” As a general result, the data rate is reduced (less bits per color).
Furthermore, the OPMA module will not have to do any video compression. In total, this will lead
to less transfer time of the motion picture.