B-roll
Supplementary footage layered over the A-roll.
B-roll is the visual reinforcement that keeps the viewer engaged during A-roll narration.
Well-cut B-roll is a documented retention amplifier — it reduces talking-head fatigue.
Modern long-form averages 30–60 percent B-roll coverage, depending on niche.
Why it matters
B-roll is one of the highest-ROI editing investments. Channels that under-index on B-roll consistently underperform on AVD.
How to improve it
- 01Aim for at least one B-roll cut per 8–12 seconds.
- 02Match B-roll to the specific sentence being narrated.
- 03Avoid generic stock B-roll; specific beats generic.
Apply it
See your own b-roll in seconds.
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