User manual

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Bit Rate  Main stream: You can set bit rate here to change video
quality. The large the bit rate is , the better the quality is.
Refer to recommend bit rate for the detailed information.
 Extra stream: In CBR, the bit rate here is the max value. In
dynamic video, system needs to low frame rate or video
quality to guarantee the value. The value is null in VBR
mode.
Reference
bit rate
Recommended bit rate value according to the resolution and frame
rate you have set.
I Frame Here you can set the P frame amount between two I frames. The
value ranges from 1 to 150. Default value is 50.
Recommended value is frame rate *2.
Audio
source
Select from the dropdown list. There are two options:
Normal/HDCVI. In the normal mode, the audio signal comes
from the Audio In. In the HDCVI mode, the audio signal comes
from the coaxial cable of the camera.
Watermark
enable
This function allows you to verify the video is tampered or not.
Here you can select watermark bit stream, watermark mode and
watermark character. Default character is DigitalCCTV. The max
length is 85-digit. The character can only include number, character
and underline.
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5.8.1.3.2 Snapshot
The snapshot interface is shown as in Figure 5-20.
Figure5‐20