# B-roll

> B-roll is the supporting footage cut over narration or between the main shots — hands, details, a street, the product on a table. It carries the edit while the voice carries the argument.

Most of the runtime of a talking-head video, an explainer or a faceless channel is B-roll. It is also the part that used to cost the most to acquire, because each second of it is a separate trip or a separate stock licence.

Generated B-roll changes that arithmetic: a shot list of ten details is ten short clips, each specific to your subject rather than approximately right.

## On eroq

Short clips are what the video studio is quickest at. Draft on Seedance Lite at 36 credits for three seconds, keep the good ones, and reuse a saved Element so the same object appears the same way across the set.

## FAQ

### How long should a B-roll clip be?

Usually three to five seconds, because it is cut under narration rather than watched on its own. Short clips are also the cheapest and the least likely to drift.

### How do I keep B-roll consistent with the rest of a video?

Fix the look once — palette, film type, lens — and reuse it across every clip, and save recurring objects or places as Elements so they render the same way each time.

### What does a set of ten B-roll clips cost?

On Seedance Lite at three seconds each, around 360 credits before you count discarded takes. Budget for a couple of takes per shot and round up.

## Related

- https://eroq.ai/use-cases/faceless-youtube — Faceless YouTube
- https://eroq.ai/glossary/element — Element
- https://eroq.ai/blog/faceless-youtube-channel-with-ai-video — Faceless channel guide

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