A-Roll, B-Roll, and Visual Sourcing

VidBlitz creates long-form videos by matching narration with useful visuals. Understanding A-roll and B-roll helps you choose the right format and review the finished timeline.

A-Roll

A-roll is a video clip with meaningful original audio, such as an interview, speech, podcast clip, statement, or historic recording.

Use an A-roll format when original spoken moments are important to the story. During A-roll, narration may pause and background music may lower so the original audio can be heard.

B-Roll

B-roll supports the narration visually. It can include relevant video, images, maps, documents, headlines, charts, motion graphics, or generated visuals when appropriate.

Use B-roll-only formats when you want narration to carry the full video and visuals to support the story without original-audio clips.

Choose the Right Format

Documentaries and explainers can work with either A-roll or B-roll-only formats. Listicles can also work with either format, depending on whether original-audio clips are useful.

Choose A-roll when direct source audio matters. Choose B-roll-only when the topic is easier to explain with narration, supporting footage, images, and graphics.

Guide Sourcing Preferences

Use Brand Profiles or project setup to guide what kinds of sources are acceptable and what should be avoided. Add blocked sources when you know a channel, site, creator, or category should not appear in your videos.

Review the Final Video

After generation, watch for visual relevance. If a clip or image does not support the narration, replace it in the editor or adjust the prompt and sourcing preferences for future projects.