# B-Script: Transcript-based B-roll Video Editing with Recommendations

## TL;DR

B-Script is an interactive transcript-based system that assists novice video producers in inserting B-roll footage by providing recommendations, improving ease, speed, and engagement of the final videos.

## Contribution

We introduce B-Script, a novel transcript-based B-roll editing system with a recommendation engine trained on expert data, enhancing user experience and video quality.

## Key findings

- Users preferred transcript-based editing over timeline-based.
- Recommendations improved editing speed and video engagement.
- Transcript interface with recommendations led to better user performance.

## Abstract

In video production, inserting B-roll is a widely used technique to enrich the story and make a video more engaging. However, determining the right content and positions of B-roll and actually inserting it within the main footage can be challenging, and novice producers often struggle to get both timing and content right. We present B-Script, a system that supports B-roll video editing via interactive transcripts. B-Script has a built-in recommendation system trained on expert-annotated data, recommending users B-roll position and content. To evaluate the system, we conducted a within-subject user study with 110 participants, and compared three interface variations: a timeline-based editor, a transcript-based editor, and a transcript-based editor with recommendations. Users found it easier and were faster to insert B-roll using the transcript-based interface, and they created more engaging videos when recommendations were provided.