AVer IWH5000 series - Manual (Page 128)

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(9) Mask/Shield Edit
Mask, mark an area on the screen to disregards the motion in the marked area and to only monitor
outside the marked area. As for the Shield, it covers an area on the screen and the covered area
would not be visible on the screen and recorded. (see also Chapter 5.3.1 )
(10)Vide Encryption
Enable/disable to encrypt the recorded video that way only the person who knows the password
can clearly view the video playback. The file size would become 10 to 30% more. Enabling the
Video Encryption check box, you will be prompted to enter the password and retype the password
for confirmation. Make sure not to forget the password for you would not be able to decrypt the
video without it.
The symbol would appear on the upper right corner of the encrypted video screen. You may
see the video during live recording. To decrypt the video, please refer to Chapter 5.3.2 .