Configuring Roi Encoding - HIKVISION UD01171B User Manual

2. Configure the following settings.
Note: Audio settings vary according to different camera models.
Audio Encoding: G.722.1, G.711 ulaw, G.711alaw, G.726, MP2L2 and PCM are
selectable. For MP2L2, the Sampling Rate and Audio Stream Bitrate are
configurable. For PCM, the Sampling Rate can be set.
Audio Input: MicIn and LineIn are selectable for the connected microphone and
pickup respectively.
Input Volume: 0-100 adjustable.
Environmental Noise Filter: Set it as OFF or ON. When the function is enabled,
the noise in the environment can be filtered to some extent.
3. Click Save to save the settings.

8.3 Configuring ROI Encoding

Purpose:
ROI (Region of Interest) encoding helps to discriminate the ROI and background
information in video compression, which means, the technology assigns more
encoding resource to the region of interest, thus to increase the quality of the ROI
whereas the background information is less focused.
Note: ROI function varies according to different camera models.
Network Camera User Manual
Figure 8-2 Audio Settings
86