Dahua DH-XVR5104HS-4KL-I3 User Manual page 72

Parameter Description
In the Channel list, select the channel that you want to configure the settings
Channel
for.
Enable the smart codec function. This function can reduce the video bit
Smart Codec
stream for non-important recorded video to maximize the storage space.
Type
In the Compression list, select the encode mode.
Compression
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 (FPS)
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.
In the Bit Rate Type list, select CBR (Constant Bit Rate) or VBR (Variable Bit
Bit Rate Type 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 change the
Bit Rate (Kb/S)
image quality. The bigger the value is, the better the image will become.
Video Enable the function for sub stream.
Click More, the More page is displayed.
Audio
Audio Source
 Local: The audio signal is input from Audio In port.
 HDCVI: The audio signal is input from HDCVI camera.
Compression
Table 5-5 Parameter description
Main Stream: In the Type list, select General, MD (Motion Detect), or
Alarm.
Sub Stream: This setting is not configurable.
H.265: Main profile encoding. This setting is recommended.
H.264H: High profile encoding. Low bit stream with high definition.
H.264: Main profile encoding.
H.264B: Baseline profile encoding. This setting requires higher bit stream
compared with other settings for the same definition.
Audio: 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 Source: In the Audio Source list, you can select Local and HDCVI.
Compression: In the Compression list, select a format that you need.
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User's Manual