I Frame Interval: A video compression method. We strongly
recommended not changing the default value of 50.
Audio Encoding: G.722.1, G.711ulaw, G.711alaw, MP2L2, G.726,
and PCM encoding standards are selectable.
Sampling Rate: Set the frequency of samples per second. Higher
settings result in higher quality audio.
Audio Stream Bitrate: Bit rate settings from 32-160 kbps are
selectable. The higher the bit rate setting, the larger the audio file
generated.
Audio Input: MicIn is selectable for the connected microphone.
Input Volume: Specifies the volume from 0 to 100.
Environmental Noise Filter: Set as OFF or ON to filter environmental
Define a region of interest (ROI) within the camera view. Assigns more
encoding resources to an ROI (background information is less focused
when network performance is less than optimal).
To configure ROI settings:
1. From the menu toolbar, click Configuration > Video/Audio > ROI.
2. Click Draw Area to draw the region of interest on the image. One region can be
drawn.
TruVision 81 Series IP Camera Configuration Manual 23
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