Network Video Recorder User Manual
137
1)
Select the
Exception Detection
tab.
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. You can set
the detection sensitivity and threshold for steep sound rise by configuring its
Sensitivity
and
Sound Intensity Threshold
.
Sensitivity
: The smaller the value, the more severe the change must 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 a steep sound drop in the
surveillance scene. You need set the detection sensitivity [1-100].
Step 6
Set the arming schedule. Refer to Chapter 11.1 Configure Arming Schedule.
Step 7
Set the linkage actions. Refer to Chapter 11.2 Configure Alarm Linkage Actions.
Step 8
Click
Apply
.
12.10 Sudden Scene Change Detection
Purpose
Scene change detection detects the change of the surveillance environment affected by external
factors, such as the intentional rotation of the camera.
Step 1
Go to
System > Event > Smart Event
.
Step 2
Click
Sudden Scene Change
.