Vivotek FD8373-(E)HV User Manual download pdf (Page 130)

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130 - User's Manual

Applications > Audio detection

Audio detection, along with video motion detection, is applicable in the following scenarios:

1� Detection of activities not covered by camera view, e�g�, a loud input by gun shots or breaking a

door/window�

2� A usually noisy environment, such as a factory, suddenly becomes quiet due to a breakdown of

machines�

3� A PTZ camera can be directed to turn to a preset point by the occurrence of audio events�

4� Dark environments where video motion detection may not function well�

The red circles indicate where the audio alarms can be triggered when breaching or falling below

the preset threshold�

How to congure Audio detection:

1� Once the Audio detection window is opened, the current sound input will be interactively

indicated by a uctuating yellow wave diagram.

2� Use a mouse click to drag the Alarm level tab to a preferred location on the slide bar�

3� Select the “Enable audio detection“ checkbox and click Save to enable the feature�

1. Note that the volume numbers (0~100) on the side of wave diagram does not represent decibel

(dB). Sound intensity level has already been mapped to preset values. You can, however, use

the real-world inputs at your installation site that are shown on the wave diagram to congure

an alarm level.

2. To configure this feature, you must not mute the audio in Configuration > Media > Audio.

The default of the camera can be muted due to the lack of an internal microphone. An external

microphone is provided by users.

NOTE:

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Vivotek FD8373-(E)HV User Manual Page 130