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Configuring Audio Detection Alarm
The camera can detect input audio signals for exceptions. When the rise or fall of volume exceeds the set
limit, or when the input volume reaches the threshold, the camera reports an alarm and triggers the set
actions. Make sure that an audio input device is correctly connected to the camera and audio input is
turned on in
Configuring Alarm Input
.
NOTE!
This function is not supported by some models, please see the actual web interface for details.
The alarm triggered actions may vary with models, please see the actual Web interface for details.
1.
Click
Setup
>
Events
>
Common Alarm
>
Audio Detection
.
2.
Select
Enable
for
Audio Detection
, select a detection type and set the difference or threshold. To
disable audio detection, clear the
Enable
check box.
The following table describes some major parameters.
Parameter
Description
Detection
Type
Rise Above: An alarm is reported when the rise of volume exceeds the difference.
Falls Below: An alarm is reported when the fall of volume exceeds the difference.
Passes: An alarm is reported when the rise or fall of volume exceeds the difference.
Threshold: An alarm is reported when the volume exceeds a threshold.
Threshold/
Difference
Threshold: After a volume is set as the threshold, an alarm is reported when the
threshold is exceeded.
Difference: the difference between two volumes. When the rise or fall of volume
exceeds the difference, an alarm is reported.
Note
:
The scale in the audio detection area is used to measure sound volume.
Audio detection results are shown in real time. The red part indicates that the volume of
the audio alarm has reached the threshold and the alarm does not necessarily reports.