DS-76xx-I2/xP/4S NVR UM
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9) Click Apply.
Audio Exception Detection
Purpose
Audio exception detection detects the abnormal sounds in the surveillance scene, such as the sudden
increase/decrease of the sound intensity.
1) Go to System > Event > Smart Event.
2) Click Audio Exception.
Figure 12-10 Audio Exception Detection
3) Select a Camera to configure.
4) Optionally, check Save VCA Picture to save the captured pictures of audio exception detection.
5) Follow the steps to set the detection rules.
1) Select the Exception Detection tab.
2) Check the Audio Loss Exception, Sudden Increase of Sound Intensity Detection, or
Sudden Decrease of Sound Intensity Detection checkboxes.
Audio Loss Exception: Detects the sound steep rise in the surveillance scene. You
can set the detection sensitivity and threshold for sound steep rise. You need to
configure its Sensitivity and Sound Intensity Threshold.
- Sensitivity: The smaller the value is, the more severe the change should be to
trigger the detection. Range [1-100].
- Sound Intensity Threshold: It can filter 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 Detection: Detects the sound steep
drop in the surveillance scene. You need set the detection sensitivity [1-
100].
6) Set the arming schedule.
Refer to Chapter 11.1 Configure Arming Schedule
.
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