You know how some videos hold your attention and others, well, put you to sleep? Various studies have shown that the average human attention span falls between about 8 and 12 seconds. This means that if you want to edit a video that will keep those goldfish attention spans from swimming away, you need to incorporate B-roll footage.
B-roll is the supplemental footage you will use to cut away from your shot to another clip that will add context or visual interest. Say, for example, you have filmed an educational video in which the speakers are talking about the water cycle. Viewers are not going to want to watch a video that just shows a person speaking for minutes at a time.
You will need to edit in b-roll that exemplifies what the speaker is talking about. Don’t have the time or funds to go out and film water in a variety of settings? That’s what Shutterstock is here for. You can easily search our library for the royalty-free stock footage you need to keep your videos engaging.