User Manual

UM DS-90xxHUHI-F8/N User Manual 041717NA 79
13.7. Playing Back External Files
Perform the following steps to look up and play back files in the external devices.
1. Enter the Playback interface, Menu > Playback.
2. Select the External File in the drop-down list on the top-left side. The files are listed in the right-side list.
3. You can click the button to refresh the file list.
4. Select and click the
button to play back it.
Figure 120, Interface of External File Playback
13.8. A
uxiliary Playback Functions
13.8.1. Playing Back Frame-by-Frame
Play video files frame-by-frame to check video image details when abnormal events happen.
1. Go to Playback interface and click button until the speed changes to Single frame.
2. One click on the playback screen represents playback or adverse playback of one frame. You
can use button in toolbar to stop the playing.
13.8.2. Digital Zoom
1. Click the button on the playback control bar to enter the Digital Zoom interface.
2. Use the mouse to draw a red rectangle and the image within it will be enlarged up to 16 times.