User’s Manual
31
Audio
Step 2 Select the
Enable
check box in
Main Stream
or
Sub Stream
.
For the camera with multiple channels, select the channel number.
Step 3 Configure audio parameters.
Table 3-16
Description of audio parameters
Parameter
Description
Encode Mode
The configured audio encode mode applies to both audio and
intercom. The default value is recommended.
Sampling Frequency
Sampling number per second. The higher the sampling frequency
is, the more the sample in a second will be, and the more accurate
the restored signal will be.
AudioIn Type
LineIn
by default.
Audio Output Type
LineOut
by default.
Noise Filter
Enable this function, and the system auto filters ambient noise.
Microphone Volume
Adjusts microphone volume.
Speaker Volume
Adjusts speaker volume.
Step 4 Click
Save
.