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2. Select the camera from the drop-down list.
3. Choose a storage mode, including main stream, sub stream, main and sub stream, main and
third stream, sub and third stream. The default is main and third stream. Only certain NVR
models support all the five modes.
The storage mode determines the recording format (HD or SD). It may affect the clarity and
output mode of the recording. Set the storage mode as needed by referring to the table
below.
Storage Mode
Main stream
Sub stream
Main + sub stream
Main + third stream
Sub + third stream
Note:
This configuration item only changes the storage stream of the NVR, and does not change
the video stream sent from IP Cameras. The IP Cameras sends the main stream by default.
4. Set the capture mode, that is, combinations of resolution and frame rate. This parameter is
configurable only when the camera is connected to the NVR via the private protocol.
5. Set the encoding parameters for different streams.
Item
Description
Stream Type
• Main stream: Select Schedule or Event.
• Schedule: Set encoding parameters for scheduled recordings.
• Event : Set encoding parameters for events such as motion detection
and alarm input.
• Sub stream: Set encoding parameters for low resolution videos intended
for network transmission.
Video
Choose H264 or H265. The supported video compression may vary with IP
Compression
Cameras model.
Resolution
The number of pixels in a frame.
Bitrate Type
• VBR: Variable Bit Rate (VBR) is used to keep the quality of video
streams as constant as possible by varying the bit rate.
• CBR: Constant Bit Rate (CBR) is used to keep a specific bit rate by
varying the quality of video streams.
Bit Rate(Kbps)
The number of bits transferred per second. Select a value from the drop-
down list, or select Custom to set a value as needed.
HD Streaming
Main stream
Sub stream
Main stream
Main stream
Sub stream
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UNIGUARD 4 & 8 HDD Series
SD Streaming
No video or image
No video or image
Sub stream
Third stream
Third stream
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