VIVOTEK
52 - User's Manual
The frame rate will decrease if you select a higher resolution�
■ Intra frame period
Determine how often to plant an I frame� The shorter the duration, the more likely you will get
better video quality, but at the cost of higher network bandwidth consumption� Select the intra
frame period from the following durations: 1/4 second, 1/2 second, 1 second, 2 seconds, 3
seconds, and 4 seconds�
■
Video quality
Constant bit rate:
•
Constant bit rate
: A complex scene generally produces a larger file size, meaning that
higher bandwidth will be needed for data transmission. The bandwidth utilization is
configurable to match a selected level, resulting in mutable video quality performance.
The bit rates are selectable at the following rates: 20Kbps, 30Kbps, 40Kbps, 50Kbps,
64Kbps, 128Kbps, 256Kbps, 512Kbps, 768Kbps, 1Mbps, 2Mbps, 3Mbps, 4Mbps,
6Mbps, and 8Mbps� You can also select
Customize
and manually enter a value�
• Fixed quality:
On the other hand, if
Fixed quality
is selected, all frames are
transmitted with the
same quality; bandwidth utilization is therefore unpredictable.
The video quality can be adjusted to the following settings: Medium, Standard, Good,
Detailed, and Excellent� You can also select
Customize
and drag the slide bar to
change the quality setting�
