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About B Roll

b-roll is alternate footage recorded in addition to the principle action of a given scene. Typically b-roll is used to show audience reaction, or add descriptive visuals to otherwise dry dialog. More importantly for editors, b-roll is used to disguise jump cuts in edited video sequences. The term B-roll stems from the days of linear video editing when there were a principle deck held the A-roll video and a secondary deck included the B-roll cutaway content.

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