49
Figure 4-50
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 4-51.
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.
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 30f/s in NTSC mode and 1f/s to 25f/s in PAL mode.
Bit rate type: System supports two types: CBR and VBR. In VBR mode, you can set video quality.
I Frame Interval: Here you can set the P frame amount between two I frames. The value ranges
from 1s to 2s, default value is 1s. Recommended value is frame rate *2.
Bit Rate
：
You can select bitrate value in the combo box.
Video/audio: You can enable or disable the video/audio.
Audio format: Please select from the dropdown list. There are three options: G711a/G711u/PCM
Audio source: Please select from the dropdown list. There are two options: normal/HDCVI. For
normal mode, the audio signal is from the Audio In port. For HDCVI mode, the audio signal is from
the coaxial cable of the camera.
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