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User's Manual
185
Figure 5-72 More settings
Step 4
Configure audio compression parameters.
Table 5-21 Audio compression parameters
Parameter
Description
Audio
This function is enabled by default for main stream. You need to manually
enable it for sub stream. Once this function is enabled, the recorded
video file is composite audio and video stream.
Compression
Select an audio compression format.
Sampling Frequency Set how many times per second a sound is sampled. The bigger the value,
the more natural the sound.
Speaker Volume
Adjust the volume of the camera.
Only the camera supporting the audio output have the function.
Step 5
Click
OK
.
Step 6
Click
Apply
.
5.7.6.2 Snapshot
You can set snapshot mode, image size, quality and interval.
Procedure
Step 1
Select
Main Menu
>
CAMERA
>
Encode
>
Snapshot
.
Summary of Contents for NVR21-4KS3 Series
Page 1: ...Network Video Recorder User s Manual ZHEJIANG DAHUA VISION TECHNOLOGY CO LTD V2 3 5...
Page 97: ...User s Manual 77 Figure 2 118 Alarm input port 1...
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Page 225: ...User s Manual 205 Figure 5 92 AcuPick human detection...
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Page 436: ...User s Manual 416 Figure 5 306 File management Step 2 Click Add Figure 5 307 Add file...
Page 456: ...User s Manual 436 Figure 5 330 Shutdown 2...
Page 485: ...User s Manual...