Vivotek PT3112/3122 - Manual (Page 19)

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frame rate to 20 to decrease the transmitted data for better video quality since human
could not easily tell the difference between 20 and 25 or 30 frames per second. If your
network bandwidth is below 384 Kbps, you should fix the bit rate according to your
bandwidth and try out the best performance by tuning the maximum frame rate. The
larger frame rate in slow network will blur the images. You may also try to choose
“Half” in size option for better images or “Halfx2” for larger image size. Note that even
you have well tuned the parameters, the performance may still vary from person to
person when multiple users view at the same time. Because the network has burst
constraint and everyone’s environment is not the same, any poor connection will drop
the normal performance.
My priority is clear identification for each image
To have the best video quality, you should fix the quality to detailed or excellent and
tune the maximum frame rate to suit for your network bandwidth. If you get some
broken pictures in slow network, you can choose TCP protocol in “Connection type” for
more accurate transmission but the received images may have certain time delay. Note
that any slow connection in multiple users will drop the proper performance.
I want to compromise between real-time and clear images
If you have a broadband network, choose fix quality to normal or better rather than fix
bandwidth. Otherwise fix the bandwidth according to your actual network speed and
set the frame rate to 30. If the images look bad, select the lower frame rate above 15.
If the images are not improved, select the lower bandwidth.
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