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Figure 4-65 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. For details, see Table 4-21.
Table 4-21 Description of audio parameters
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 number per second. The higher the sampling frequency
is, the more the sample in a second will be, and the more accuary
the restored signal will be. You can select audio Sampling
Frequency from 8K, 16K, 32K, 48K, 64K.
You can select audioin type from:
Linein: Requires external audio device.
Mic: Not require external audio device.
Enable this function, and the system auto filters ambient noise.
Adjusts microphone volume.
Step 4 Click Save.
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