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5. Set the detecon rules.
1) Select Excepon Detecon.
2) Check Audio Loss Excepon, Sudden Increase of Sound Intensity Detecon, and/or Sudden
Decrease of Sound Intensity Detecon.
Audio Loss Excepon
Detects a steep sound rise in the scene. Set Sensivity and Sound Intensity Threshold for
the steep sound rise.
Sensivity
The smaller the value is, the more severely the change would trigger the detecon. Range
[1-100].
Sound Intensity Threshold
It can lter the sound in the environment. The louder the environment sound is, the higher
the value should be. Adjust it according to the environment. Range [1-100].
Sudden Decrease of Sound Intensity Detecon
Detects a steep sound drop in the scene. Detecon sensivity [1-100].
6. Set the arming schedule. Refer to Congure Arming Schedule .
7. Set the linkage acons. Refer to Congure Linkage Acons .
8. Click Apply.
6.2.10 Defocus Detecon
Image blur caused by lens defocus can be detected.
Steps
1. Go to Smart Analysis → Smart Event Sengs → Other Events .
2. Select a camera.
3. Click Defocus.
Network Video Recorder User Manual
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