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Adm inist rator M ode
3
3.6.3 Audio Detection
Note this function is only applicable to audio-in-supporting models.
Audio detection is used to detect abnormal audio volume. When the rise, fall, or change of
volume exceeds the set limit, or when the input volume reaches the set threshold, an alarm
generated. Make sure audio input is enabled. is
Figure 3-43
1. Select On to activate Audio Detection.
2. Select a Detection Type.
Sudden Rises: An alarm is reported when the rise of volume exceeds the set
Difference.
Sudden Fall: An alarm is reported when the fall of volume exceeds the set
Difference.
Sudden Change: An hen the rise or fall of volume exceeds the
the set Threshold.
Select ered by an audio alarm and set a schedule plan if needed. Refer
alarm is reported w
set Difference.
Threshold: An alarm is reported when the volume exceeds
3. Set a Difference or Threshold.
the actions to be trigg
to 3.6.1 Motion Detection for detailed instructions.
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