41
Figure 5- 14
5.1.3 Audio
Please note some series devices do not support audio function.
5.1.3.1 Audio
The audio interface is shown as below. See
Figure 5- 15
Please refer to the following sheet for detailed information.
Parameter
Function
Sampling
Frequency
Sampling frequency support two modes which are 8K and 16K.
Default is 8K.
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.
Audio enable
Check Enable: the stream is A/V composite stream, otherwise
it contains video only.
Audio is available only when this function is enabled.
Encode mode
The encode mode of the main stream and extra stream include
G.711A and G.711Mu.
The setup here is for audio encode mode and the bidirectional
talk encode both.
5.1.3.2 Alarm audio
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