Recorded video material often does not contain exactly the scenery you are interested in for your observations.
The most common situations are:
oSeveral minutes have been recorded before the actual test situation begins.
oMultiple test situations were recorded in a single video file, resulting in a different start time for each session.
oThe actual test you need to observe starts at different times in different video files, but you need to compare the first so many seconds or minutes after the start per session.
oThe recording was (automatically) split into multiple videos for one session. Maybe because the session was too long for the default 2 Gb files of many recording systems, or because you are making 24/7 recordings and each video covers a day or maybe just 4 hours.
o...
INTERACT offers a range of functionalities to resolve any of these situations effortlessly. There are methods you need to apply before you start scoring and methods that help you resolve any of these issues after you collected all your data.
 | Eliminate Content at Video Start - Explains how to virtually chop-off the first part of a video and how to re-open such (a) video(s) without the need to redefine the offset(s). |
| Align Multiple Sessions - Explains how to compare time-related statistics between multiple sessions. |
| Join Subsequent Videos - Explains how to create a consecutive time line for separate videos that cover a single session. |
Note: There are far more possibilities as we can describe in these examples, and most routines can be used simultaneously, so do not hesitate to ask for assistance if you have trouble aligning your data the way you need it.