User Manual

Figure 5-11 Audio Excepon Detecon
4. Oponal: Check Save VCA Picture to save the captured audio excepon detecon pictures.
5. Set the
detecon rules:
1) Select Excepon Detecon.
2) Check Audio Loss Excepon,Sudden Increase of Sound Intensity Detecon,and/or Sudden
Decrease of Sound Intensity Detecon.
Audio Loss
Excepon
Detects a steep sound rise in the surveillance scene. You can set the detecon sensivity
and threshold for steep sound rise by conguring its Sensivity and Sound Intensity
Threshold
Sensivity
The smaller the value, the more severe the change must be to trigger the detecon.
Range [1-100].
Sound Intensity Threshold
It can lter the sound in the environment. The louder the environment sound, the higher
the value should be. Adjust it according to the environment. Range [1-100].
Sudden Decrease of Sound Intensity
Detecon
Detects a steep sound drop in the surveillance scene. You need set the detecon
sensivity [1-100].
6. Set the arming schedule. Refer to
Congure Arming Schedule .
7. Set the linkage acons. Refer to Congure Linkage Acons .
8. Click Apply.
5.2.10 Defocus
Detecon
Image blur caused by lens defocus can be detected.
Network Video Recorder User Manual
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