Audio Detection - Beward N13201 Operation User's Manual

triggers" not less than 9 seconds (Pic. 11.27). If this interval is less and several events trigger one
by one, then some part of recorded information from the [Post-event Recording] interval will be
duplicated in the [Pre-event Recording] interval of the next file.
As an alarm event triggers the recording file is assembled from pre- and post-event
recording time periods. And the next event may trigger only after summarized period which
includes the post-event recording time interval of the current event and the pre-event recording
time interval of the next one (Pic. 11.29).

11.2.1.2. Audio Detection

Audio Detection: the action is executed when audio detector triggers (Pic. 11.30). This
alarm event, unlike the motion detection, operates without taking a detection area into account and
triggers when a certain preset sound level is exceeded.
NOTE:
Before adding the [Audio Detection] event make sure that the detector is set up and turn on.
To set audio detection go to SETTING – Event – Audio Detection (see paragraph 11.4).
When selecting this type the following settings are available.
Set min time interval between triggers: when this time interval ends, the alarm event can
be restarted. The values from 1 to 999 seconds are available.
Detection Type: specify the moment of alarm event triggering:
Start: an alarm triggers at the moment when sound starts.
Stop: an alarm triggers at the moment when sound ends.
Please Configure Audio Detection: a link which allows you to open motion detection
configuration window.
N13201 Operations User Manual
Chapter 11. The [SETTING] Menu: Event
Pic. 11.29
Pic. 11.30
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