Hikvision DS-E04HGHI-XE 4-ch 1080p Lite 1U H.265 eSSD DVR

User Manual - Page 97

For DS-E04HGHI-XE.

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Main stream refers to the primary stream that aects data recorded to the hard disk drive
and will directly determine your video quality and image size. Comparing with the sub-
stream, the main stream provides a higher quality video with higher resoluon and frame
rate.
Sub-Stream
Sub-stream is a second codec that runs alongside the mainstream. It allows you to reduce the
outgoing internet bandwidth without sacricing your direct recording quality. Sub-stream is
oen exclusively used by smartphone applicaons to view live video. Users with limited
internet speeds may benet most from this seng.
Frame Rate
Frame rate refers to how many frames are captured each second. A higher frame rate is
advantageous when there is movement in the video stream, as it maintains image quality
throughout.
Resoluon
Image resoluon is a measure of how much detail a digital image can hold: the greater the
resoluon, the greater the level of detail. Resoluon can be specied as the number of pixel-
columns (width) by the number of pixel-rows (height), for example, 1024 × 768.
Bitrate
The bit rate (in Kbit/s or Mbit/s) is oen referred to as speed, but actually denes the number
of bits/me unit and not distance/me unit.
Enable H.264+/Enable H.265+
The H.264+/H.265+ mode helps to ensure the high video quality with a lowered bitrate. It can
eecvely reduce the need of bandwidth and HDD storage space.
Audio Source
The audio input signal source. If you select Audio Source as Camera, it will transmit audio via
coaxial cable, and make the local audio input signal unavailable. Ensure the camera supports
to transmit audio via coaxial cable before selecng Audio Source as Camera.
Note
Audio Source is only available for certain models.
Enable Low Bitrate Mode
In order to save device bandwidth or memory, the device would automacally adjust camera
video main stream bitrate according to your network condion.
Note
Low bitrate mode is only available for certain camera models. If your camera supports this
funcon, it would be enabled by default.
3.
Click Apply.
Digital Video Recorder User Manual
73
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