VIVOTEK
■ Audio detection
A preset threshold can be configured 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. Please refer to page 101 Applications > Audio detection for more details.
Once you have a preset audio alarm level, you can define the triggering condition either as an audio
input rises above or falls below the alarm level.
3. Action
Define the actions to be performed by the Network Camera when a trigger is activated.
■ Trigger digital output for 
seconds
Select this option to turn on the external digital output device when a trigger is activated. Specify the length of the trigger interval in the text box.
■ Backup media if the network is disconnected
Select this option to backup media file on SD card if the network is disconnected. Please note that this function will only be displayed after you set up the network storage (NAS). For more information about how to set up network storage, please refer to page 106.
■ Move to preset location
Select a preset location you’ve configured. Note that please configure Preset locations first. For detailed information, please refer to page 81~83. Another checkbox will appear, Capture media after moving to the location. You can select to record associated snapshot, video clip or system event once the event is triggered and the camera moves to the preset location. See Add Media in the following discussion.
To set an event with recorded video or snapshots, it is necessary to configure the server and media settings so that the Network Camera will know what action to take (such as which server to send the media files to) when a trigger is activated.
User's Manual - 87
