34
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.
a.
Detection Type
i.
Rise Above: An alarm is reported when the rise of volume exceeds the difference.
ii.
Falls Below: An alarm is reported when the fall of volume exceeds the difference.
iii.
Passes: An alarm is reported when the rise or fall of
volume exceeds the difference.
iv.
Threshold: An alarm is reported when the volume
exceeds a threshold.
b.
Threshold/ Difference
i.
Threshold: After a volume is set as the threshold, an
alarm is reported when the threshold is exceeded.
ii.
Difference: the difference between two volumes.
When the rise or fall of volume exceeds the difference,
an alarm is reported.
1.
The scale in the audio detection area is used
to measure sound volume.
2.
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 report.
3.
Set the alarm-triggered actions and arming schedule as required. For the detailed steps, see the descriptions
of alarm-triggered actions in
Configuring Motion Detection Alarm
.
4.
Click
Save
.
Configuring Alarm Input
The camera can receive alarm information from a third-
party device. To use this function, you need to
configure the following information for alarm input
first: port, alarm name, alarm type (normally open or
normally closed) and alarm reporting time.
1.
Click
Setup
>
Events
>
Alarm Input
.
2.
Select the Boolean and set the Boolean name.
3.
Select
Normally Open
or
Normally Closed
according to the type of the third-party alarm
input device. For example, if the third-party
alarm input device is normally open, you need
to select
Normally Open
here, so that the
camera can receive alarm information from the
third-party alarm input device.
4.
Set actions to be triggered by an input alarm and the plan. For the detailed steps, see the descriptions of
alarm-triggered actions in
Configuring Motion Detection Alarm
.
5.
Click
Save
.
Configuring Alarm Output
After alarm output is triggered by a motion detection alarm, temperature alarm or Boolean alarm, the camera can output
alarm information to the third-party device if alarm output is set correctly to Normally Open or Normally Closed. The
alarm output duration is configurable.
