Playing Back By Event Search - NST HK-HDVR8-3 User Manual

6.1.3 Playing Back by Event Search

Purpose:
Play back record files on one or several channels searched out by restricting event type (motion detection, alarm
input or VCA). Channel switch is supported.
Steps:
1. Enter the Playback interface.
Menu>Playback
2. Click
3. Select Alarm Input, Motion, VCA as the event type, and specify the start time and end time for search.
4. Click Search, and the record files matching the search conditions will be displayed on a list.
5. Select and click
You can click Back button to return to the search interface.
If there is only one channel triggered, clicking
this channel.
If several channels are triggered, clicking
Check checkbox to select one channel for playback or select multiple channels for synchronous
playback.
The maximum number of channels for synchronous playback supported varies to different models.
6. On the Event Playback interface, you can select the main stream or sub stream from the dropdown list for
playback.
The toolbar in the bottom part of Playback interface can be used to control playing process.
Pre-play and post-play can be configured for the playback of event triggered record files.
Pre-play: The time you set to play back before the event. For example, when an alarm triggered the
recording at 10:00, if you set the pre-play time as 5 seconds, the video plays back from 9:59:55.
Post-play: The time you set to play back after the event. For example, when an alarm triggered the
recording ends at 11:00, if you set the post-play time as 5 seconds, the video plays back till 11:00:05.
7. You can click or
description of buttons on the toolbar.
6.1.4 Playing Back by Tag
Purpose:
Video tag allows you to record related information like people and location of a certain time point during
playback. You are also allowed to use video tag(s) to search for record files and position time point.
Before playing back by tag:
1. Enter Playback interface.
Menu>Playback
2. Search and play back the record file(s). Refer to Chapter 6.1.2 Play Back by Channel for the detailed
Click button to add default tag.
Click button to add customized tag and input tag name.
Digital Video Recorder User Manual
and select to enter the Event Playback interface.
button to play back the record files.
button takes you to the Synchronous Playback interface.
button to select the previous or next event. Please refer to Table 6.1 for the
of the record files.
Figure 6. 5 Add Tag
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button takes you to Full-screen Playback interface of