Manual

32
Figure 3-20
Please refer to the following sheet for detailed information.
Parameter
Function
Sampling
frequency
It is to set the sampling frequency of audio
Microphone
volume
It is to set the volume of the microphone
Speaker
volume
It is to set the volume of the speaker
Audio enable
 Main stream: Recorded file only contains video by default. You need to check
the audio box here to enable audio function so that the main stream the
network transmitted is audio/video composite stream.
 Sub (Extra) stream: Recorded file only contains video by default. You need to
check the audio box here to enable audio function so that the extra stream the
network transmitted is audio/video composite stream.
Encode mode
The encode mode of the main stream and extra stream include PCM, G.711A and
G.711Mu.
The setup here is for audio encode mode and the bidirectional talk encode both.
3.2 Network
3.2.1 TCP/IP
The TCP/IP interface is shown as in Figure 3-21.