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Sound Intensity Threshold: Range [1-100], it can filter the sound in the
environment, the louder the environment sound, the higher the value should
be. You can adjust it according to the real environment.
5. You can view the real-time volume of the sound.
6. Click the Edit button to set the arming schedule.
7. Select the linkage methods for audio exception, including Notify Surveillance
Center, Send Email, Upload to FTP, Trigger Channel for recording and Trigger
Alarm Output.
8. Click Save to save the settings.
Figure 6-58 Configuring Audio Exception Detection
6.6.8 Configuring Defocus Detection
Purpose:
The image blur caused by defocus of the lens can be detected, and some certain
actions can be taken when the alarm is triggered.
Note:
Defocus detection function varies according to different camera models.
Steps:
1. Enter the Defocus Detection settings interface:
Configuration> Advanced Configuration> Smart Event> Defocus Detection
2. Check the checkbox of Enable Defocus Detection to enable the function.
3. Click-and-drag the slider to set the detection sensitivity. The sensitivity value
ranges from 1 to 100, and the higher the value is, the more easily the defocus
image can trigger the alarm.
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