Operation Manual

Dahua Network Camera Web 3.0 Operation Manual
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Parameter
Function
Enable
You can enable audio only when video is enabled.
After selecting the “Enable” of main stream or sub stream, the
network transmission stream is the audio/video composite
stream, otherwise it only includes video image.
Encode mode
The encode mode of the main stream and extra stream include
G.711A, G.711Mu, G.726 and ACC. The default mode is
G.711A.
The setup here is for audio encode mode and the bidirectional
talk encode both.
Sampling
Frequency
The sampling frequency of audio. It includes the following
options:
 8K
 16K
 32K
 48K
 64K
AudioIn Type
Two modes to select: LineIn, Mic.
Device needs to connect external audio input source under
LineIn mode, and it doesn’t need to connect external audio
input source under Mic mode.
Noise Filter
Enable the function and it can filter relevant noise.
Microphone
Volume
Adjust microphone volume from 0～100.
Note:
Supported by some devices.
Speaker Volume
Adjust speaker volume from 0～100.
Note:
Supported by some devices.
5.1.3.2 Alarm audio