Defocus Detection - HIKVISION DS-9600NI-I8B Series User Manual

2) Check Audio Loss Exception, Sudden Increase of Sound Intensity Detection, and/or Sudden
Decrease of Sound Intensity Detection.
Audio Loss Exception
Detects a steep sound rise in the surveillance scene. Set Sensitivity and Sound Intensity
Threshold for the steep sound rise.
Sensitivity
The smaller the value is, the more severely the change would trigger the detection. Range
[1-100].
Sound Intensity Threshold
It can filter 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 Detection
Detects a steep sound drop in the surveillance scene. Detection sensitivity [1-100].
6. Set the arming schedule. Refer to Configure Arming Schedule.
7. Set the linkage actions. Refer to Configure Linkage Actions.
8. Click Apply.

6.2.18 Defocus Detection

Image blur caused by lens defocus can be detected.
Steps
1. Go to Smart Analysis → Smart Event Settings → Other Events.
2. Select a camera.
3. Click Defocus.
Network Video Recorder User Manual
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