Configuring Roi Encoding - HIKVISION DS-2CD20 Series User Manual

Or Configuration > Advanced Configuration > Video / Audio > Audio
2. Configure the following settings.
Audio Encoding: G.722.1, G.711 ulaw, G.711alaw, G.726, and MP2L2 are
selectable. And 32kbps, 64kbps, and 128kbps are supported if MP2L2 is selected.
Audio Input: MicIn and LineIn are selectable for the connected microphone and
pickup respectively.
Input Volume: 0-100
Environmental Noise Filter: Set it as OFF or ON. When you set the function on
the noise detected can be filtered.
3. Click Save to save the settings.

6.4.3 Configuring ROI Encoding

ROI stands for the region of interest. And the ROI encoding enables you to
discriminate the ROI and background information in compression, that is to say, the
technology assigns more encoding resource to the region of interest to increase the
quality of the ROI whereas the background information is less focused.
Steps:
1. Enter the ROI settings interface
Configuration > Advanced Configuration > Video / Audio >ROI
User Manual of Network Camera
Figure 6-26 Audio Settings
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