Dahua HCVR5204A Series, Руководство пользователя, Страница: 115 / 268

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dark section may lack brightness while the bright section may over exposure .Th e
recommended value ranges from 40 to 60.

Sharpness: The value here is to adjust the edge of the video. The value ranges from 0
to 100. The larger the value is, the clear the edge is and vice versa. Please note there
is noise if the value here is too high. The default value is 50 and the recommended
value ranges from 40 to 60.
Figure 4-49
4.10.1.2 Encode
It is to set video bit stream, picture bit stream, video overlay parameter and etc.
4.10.1.2.1 Video
Video setting includes the following items. See Figure 4-50.

Channel: Select the channel you want.

Type: Please select from the dropdown list. There are three options: regular/motion
detect/alarm. You can set the various encode parameters for different record types.

Compression: System supports H.264 and MJPEG.

Resolution: System supports various resolutions, you can select from the dropdown
list. Please note the option may vary due to different series.

Frame rate: It ranges from 1f/s to 25f/s in NTSC mode and 1f/s to 30f/s in PAL mode.

Bit rate type: System supports two types: CBR and VBR. In VBR mode, you can set
video quality.

Quality: There are six levels ranging from 1 to 6. The sixth level has the highest image
quality.

Video/audio: You can enable or disable the video/audio.

Audio: Please select from the dropdown list.