Step 2
Select the
Enable
checkbox in
Main Stream
or
Sub Stream
.
For the camera with multiple channels, select the channel number.
Please be mindful of local laws and regulations when enabling and recording audio.
Step 3
Configure audio parameters.
Table 4-21 Description of audio parameters
Parameter
Description
Encode Mode
You can select audio
Encode Mode
from
G.711A
,
G.711Mu
,
AAC
,
G.726
.
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 value, the more the samples in a second, and the
restored signal will be more accurate. You can select audio
Sampling Frequency
from
8K
,
16K
,
32K
,
48K
,
64K
.
Audio in Type
You can select audio in type from:
●
Line-in
: Requires external audio device.
●
Mic
: Not require an external audio device. Uses the camera’s
built-in microphone.
Noise Filter
Enable this function to auto filter ambient noise.
Microphone Volume
Adjusts microphone volume.
Speaker Volume
Adjusts speaker volume.
Step 4
Click
Save
.
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