Vivotek TC5633 Installation Guide download pdf (Page 23)

- 22 -

www.vivotek.com

T: 886-2-82455282

F: 886-2-82455532

enough to allow a transmission rate of greater than 20 image frames per second. If

the broadband network is over 1 Mbps, set the “Fix bit rate” to 1000Kbps or

1200Kbps. The maximum frame rate is 30. If your network bandwidth is more than

512Kbps, you can fix the bit rate according to your bandwidth and set the maximum

frame rate to 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 512 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 “160x120” in the “Size” option for better images. 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.

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 90 91

No comments

Vivotek TC5633 Installation Guide Page 23