VIVOTEK IP3112 User Manual

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the bit rate according to your bandwidth and set the maximum frame rate to 25 fps or 
30 fps. If the images vary dramatically in your environment, you may want to slow the 
maximum frame rate down to 20 fps in order to lower the rate of data transmission. 
This allows for better video quality and the human eyes cannot readily detect the 
differences between those of 20, 25, or 30 frames per second. If your network 
bandwidth is below 384 Kbps, set the “Fix bit rate” according to your bandwidth and try 
to get the best performance by fine-tuning with the “Maximum frame rate”. In a slow 
network, greater frame rate results in blur images. Another work-around is to choose 
“Half” in the “Size” option for better images, or “Halfx2” for a larger image view. Video 
quality performance will vary somewhat due to the number of users viewing on the 
network; even when the parameters have initially been finely tuned.    Performance will 
also suffer due to poor connectivity because of the network’s burst constraint. 
 
Only Quality Images Will Do 
To have the best video quality, you should set “Fix quality” at “Detailed” or “Excellent” 
and adjust the “Maximum frame rate” to match your network’s bandwidth. If your 
network is slow and you receive “broken” pictures, go to the TCP protocol in 
“Connection type” and choose a more appropriate mode of transmission. The images 
may suffer a time delay due to a slower connection.    The delay will also increase with 
added number of users.   
   
Somewhere Between Real-time and Clear Images 
If you have a broadband network, set “Fix quality” at ”Normal” or better, rather than 
setting “Fix bit rate”. You can also fix the bandwidth according to your actual network 
speed and adjust the frame rate.    Start from 30 fps down for best results but not below 
15 fps.    If the image qualities are not improved, select a lower bandwidth setting.