GVD M3 series, User Manual

Page: 115 / 197

Chapter 4
System Operation
HD NVR User Manual 4-67
4-6-3 Play a Historical Video
When the channel has recorded the video, the viewer is able to play a historical video .
To play a historical video, see the following steps:
Figure 4-48 Play a historical video
1.
Click the Viewer which sourcing channel is recording or has recorded.
2. If the time slider is hidden, show the time slider.
3.
Refer to the last section and find the target playing index in the timeline.
4. Double click the time index, and the viewer starts playing the historical video.
5.
To playback the video, sim ply click the reverse play button.
6.
To change the playing speed, move the speed slider to the preferred speed. The
action text in the information panel shows the information of playing speed.
TIP: Sometimes the playing index will disappear
when moving the cursor in the ruler. The user can
right click the timeline, and a pop -up menu appears.
Click ‘ To Cursor ’ item to move the timeline to the
position of the playing index.
7. The image plays in the new speed.