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Network Camera User Manual
UM Network Camera 072221NA 23
Chapter 4 Video and Audio
This part introduces the configuration of video and audio related parameters.
4.1 Video Settings
This section introduces the settings of video parameters such as stream type, video encoding, and
resolution.
Go to the setting page: Configuration → Video/Audio → Video .
Stream Type
For devices that support more than one stream, you can specify the parameters for each stream type.
• Main Stream
: This stream stands for the best stream performance the device supports. It usually offers
the best resolution and frame rate the device can accomplish. But high resolution and frame rate
usually means larger storage space and higher bandwidth requirements in transmission.
• Sub Stream : The stream usually offers comparatively low resolution options, which consumes less
bandwidth and storage space.
• Other Streams
: Steams other than the main stream and sub stream may also be offered for customized
usage.
Video Type
Select the content (video and audio) that should be contained in the stream.
• Video : Only video content is contained in the stream.
• Video & Audio
: Video content and audio content are contained in the composite stream.
Resolution
Select the video resolution according to actual needs. Higher resolution requires higher bandwidth and
storage.
Bitrate Type and Max. Bitrate
• Constant Bitrate
: The stream is compressed and transmitted at a comparatively fixed bitrate. The
compression speed is fast, but mosaic may occur on the image.
• Variable Bitrate : The device automatically adjusts the bitrate under the set Max. Bitrate . The
compression speed is slower than that of the constant bitrate, but it guarantees the image quality of
complex scenes.
Video Quality
When
Bitrate Type
is set as
Variable
, video quality is configurable. Select a video quality according to
actual needs. Note that higher video quality requires higher bandwidth.