Network Video Recorder User Manual
167
Audio exception detection detects abnormal sounds in the surveillance scene, such as a sudden
increase/decrease in sound intensity.
Go to
System > Event > Smart Event
.
Select a camera to configure.
Click
Audio Exception
.
Audio Exception Detection
Optionally, check
Save VCA Picture
to save the captured audio exception detection pictures.
Set the detection rules:
Select
Exception Detection
.
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].
Set the arming schedule. Refer to Chapter 12.1 Configure Arming Schedule.
Set the linkage actions. Refer to Chapter 12.2 Configure Alarm Linkage Actions.
Click
Apply
.
