Dahua NVR4832-I, Руководство пользователя

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Local Basic Operations 82
Parameter Description
 H.264: Main profile encoding.

H.264B: Baseline profile encoding. This setting requires higher bit
stream compared with other settings for the same definition.
Resolution
In the Resolution list, select resolution for the video.
The maximum video resolution might be different dependent on your
device model.
Frame Rate
(FPS)
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.
Generally, in PAL format, you can select the value from 1 through 25;
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.
Bit Rate Type
In the Bit Rate Type list, select CBR (Constant Bit Rate) or VBR
(Variable Bit Rate). If you select CBR , the image quality cannot be
configured; if you select VBR , the image quality can be configured.
Quality
This function is available if you select VBR in the Bit Rate List.
The bigger the value is, the better the image will become.
I Frame Interval The interval between two reference frames.
Bit Rate (Kb/S)
In the Bit Rate list, select a value or enter a customized value to
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.
Figure 4-56
Step 4 Configure parameters. See Table 4-13.
Table 4-13
Parameter Description
Audio Encode
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.
Audio Format In the Audio Forma t list, select a format: G711a, G711u, PCM, AAC.