Dahua DHI-NVR5208-4KS2 User Manual page 132

Parameter Description


In the Resolution list, select resolution for the video.
Resolution The maximum video resolution might be different dependent on your
device model.
Configure the frames per second for the video. The higher the value
is, the clearer and smoother the image will become. Frame rate
changes along with the resolution.
Frame Rate
Generally, in PAL format, you can select the value from 1 through 25;
(FPS)
in NTSC format, you can select the value from 1 through 30. However,
the actual range of frame rate that you can select depends on the
capability of the Device.
In the Bit Rate Type list, select CBR (Constant Bit Rate) or VBR
Bit Rate Type
(Variable Bit Rate). If you select CBR, the image quality cannot be
configured; if you select VBR, the image quality can be configured.
This function is available if you select VBR in the Bit Rate List.
Quality
The bigger the value is, the better the image will become.
I Frame Interval The interval between two reference frames.
In the Bit Rate list, select a value or enter a customized value to
Bit Rate (Kb/S) change the image quality. The bigger the value is, the better the
image will become.
Step 3 Click More Setting.
The More Setting interface is displayed. See Figure 4-56.
Step 4 Configure parameters. See Table 4-13.
Parameter
Audio Encode
Audio Format
H.264: Main profile encoding.
H.264B: Baseline profile encoding. This setting requires higher bit
stream compared with other settings for the same definition.
Figure 4-56
Description
This function is enabled by default for main stream. You need to

manually enable it for sub stream 1. Once this function is
enabled, the recorded video file is composite audio and video
stream.
In the Audio Format list, select a format: G711a, G711u, PCM, AAC.
Table 4-13
Local Basic Operation 121