User Guide

ManualsBrandsAmcrest ManualsElectronics4K 8-Channel AI NVR (8-Port PoE) Smart NVR, Facial Recognition, Facial Detection & Vehicle Detection - Supports 8 x 4K IP Cameras, Supports up to 2 x 8TB Hard Drives (Not Included)

Click Apply to save your settings.

Adjusting Bitrate

Since H.265 compression uses roughly 30% less resources than H.264, the camera will typically

come defaulted to a preset bitrate when switching to H.265. For instance, when switching to

H.265 on a 4K camera, the bitrate may be defaulted to 8192 Kb/S, however, adjusting the bitrate

to a lower value may help to increase the overall efficiency of the camera while viewing playback

or watching live view.

To adjust the bitrate, access the Encode menu and click on the Bit Rate (Kb/S) dropdown

menu. A list of preset bitrates will be displayed as well as a Customized selection which will

allow you to set a customized bitrate if needed.

Please note, when using a 4K camera, it is recommended to keep the bitrate around 1792 Kb/S,

however, different values may be applicable depending on your specific network requirements.

Please refer to the table below regarding recommended resolution and bitrates and custom

thresholds.

Resolution

Recommended Bitrate

Custom Bitrate Threshold

2MP (1080P)

Default Settings

3MP

Default Settings

4MP

Default Settings

5MP

1536 Kb/S

1792 Kb/S

8MP (4K)

1792 - 2048 Kb/S

1825 Kb/S

Note: Adjusting the bitrate to anything lower than the recommended bitrates above may result in

degradation to recordings or to live view. For best results, if you are adjusting multiple cameras, it

is highly recommended to adjust each camera individually. This may be a trial and error

process since most network environments are unique and may vary, however, the bitrate should

range between 1792-2048 Kb/S if using a 4K camera. An optimal customized bitrate should be

around 1825 Kb/S. Click Apply to save the new bitrate settings.

IVS, Motion Detection, and Recording Setup

This section will cover how to set up a recording schedule for your NVR. This is applicable to

regular (24/7 recordings), motion detection, and IVS recordings. IVS stands for intelligent video

system analytics and is the basis for all AI rules associated with your device. This section will

also cover how to set up a recording schedule, email alerts with snapshots, etc.

Note: The NVR can only be set up to save recordings or IVS information if a hard drive has

already been installed. However, email alerts with snapshots can still work without a hard

drive installed.

The following setup processes will be shown using the NVR’s built-in interface. However, these

same steps can also be done through the web interface on a computer. For more information on

how to access your device from a web browser, please refer to section, “Computer Access

Setup”. Despite the difference in appearance, the settings pages have similar organizational

structures.

Enabling Recording Options

This menu should be verified to ensure that all recording protocols are enabled. This menu

details, per channel, which streams are enabled or disabled in the NVR. To access this menu,

please refer to the information provided below.

1. On the main menu, click on Storage.