Vivotek FD8155 - Page 99

VIVOTEK
User's Manual - 99
■ Audio detection
A preset threshold can be congured with an external microphone as the trigger to system event. The
triggering condition can be an input exceeding or falling below a threshold. Audio detection can take
place as a complement to motion detection or as a method to detect activities not covered by the
camera's view.
Once you have a preset audio alarm level, you can dene the triggering condition either as an audio
input rises above or falls below the alarm level.
■ Camera tampering detection
This option allows the Network Camera to trigger when the camera detects that is is being tampered
with. To enable this function, you need to congure the Tampering Detection option rst. Please refer
to page 114 for detailed information.
■ Manual Triggers
This option allows users to enable event triggers manually by clicking the on/off button on the
homepage. Please congure 1 to 3 associated events before using this function.