User Manual

DS-72xxHUI-Kx, DS-72xxHQI-Kx Digital Video Recorder (DVR) User Manual
130 UM DS-72xxHUI-Kx, DS-72xxHQI-Kx 062817NA
Figure 162, Set Audio Exception Detection Rules
a) Check the Audio Loss Exception checkbox to enable the audio loss detection function.
b) Check the Sudden Increase of Sound Intensity Detection checkbox to detect a steep rise in the
surveillance scene sound. Set the sensitivity and threshold for the steep rise in sound.
c) Sensitivity: Range [1-100], the smaller the value, the more severe the change must be to trigger the
detection.
d) Sound Intensity Threshold:
Range [1-100], this filters the sound in the environment. The louder the
environment sound, the higher the value should be. Adjust it according to the environment.
e) Check the Sudden Decrease of Sound Intensity Detection checkbox to detect a steep drop in the
surveillance scene sound. Set the detection sensitivity [1-100] for the steep drop in sound.
7. Click Apply to activate the settings.
9.13 Defocus Detection
Image blur caused by defocusing of the lens can be detected. Specific actions can be taken when the alarm is
triggered.
Sensitivity in Rule Settings ranges from 1 to 100. The higher the
value, the more easily the defocus image will trigger the alarm.
9.14 Sudden Scene Change
The Scene Change Detection function detects changes in the surveillance environment by external factors such as the
intentional rotation of the camera. Specific actions can be taken when the alarm is triggered.