User Manual

DS-73xxHUI-K4, DS-73xxHQI-K4, DS-90xxHUI-K8 DVR User Manual
UM DS-73xxHUI-K4 DS-73xxHQI-K4 DS-90xxHUI-K8 092017NA 138
5. Click Set to configure the trigger channel, arming schedule, linkage action, and PTZ
linking for the audio exception alarm.
6. Click Rule Settings to set the audio exception rules.
Figure 185, Set Audio Exception Detection Rules
7. Check the Audio Loss Exception checkbox to enable the audio loss detection function.
8. Check the Sudden Increase of Sound Intensity Detection checkbox to detect a steep
sound rise in the surveillance scene. Set the detection sensitivity and threshold for a
steep sound rise.
•
Sensitivity:
Range [1-100], the smaller the value, the more severe the change to
trigger the detection.
•
Sound Intensity Threshold: Range [1-100], filters the sound in the environment,
the louder the environment sound, the higher the value should be. Adjust it
according to the environment.
9. Check the Sudden Decrease of Sound Intensity Detection checkbox to detect a steep
sound drop in the surveillance scene. Set the detection sensitivity [1-100] for a steep
sound drop.
10. Click Apply to activate the settings.
9.14 Defocus Detection
Purpose
Image blur caused by lens defocus can be detected, and specific actions can be taken when
the alarm is triggered.
•
Sensitivity
in the Rule Settings ranges from 1 to 100. The higher the value, the more
easily the defocused image will trigger the alarm.