How to add B-roll to a video of you talking
Upload your talking-head video to Vizard Agent and ask for B-roll. Vizard Agent transcribes what you said with word-level timing, searches for footage subject by subject as each one comes up, and lays the cutaways over your voice. Your original audio and your full content stay exactly as recorded.
What do you type into Vizard Agent?
Say what to keep as clearly as what to add. "Keep my original voice and the full content" is the clause that stops Vizard Agent shortening the take, which it will otherwise treat as an improvement. The rest is taste, and taste is cheaper stated than corrected. Music is the most common correction, so decide it up front.
Prompt
What does Vizard Agent actually do?
The search runs per subject, not once for the whole video. That's why the cutaways land on what was actually said instead of on a general theme pulled from the title. One search per thing you talk about is slow by hand and cheap for Vizard Agent, and the word timings let each cutaway begin on a word. In the session behind this article it:
- Checked the technical details of a three-minute talk and transcribed the speech with word timings.
- Read the full transcript and extracted frames to see how the speaker was framed and when they were on camera.
- Read its own editing guidance and its stock search tool before searching for anything.
- Searched archive footage for each subject in turn, widening the search where a subject came back with nothing usable.
- Listed the candidates and chose among them rather than taking the first result.
- Delivered 195.8 seconds at 1080x1920 with the original audio preserved, so a three-minute talk came back as a three-minute talk.
When does this not work well?
B-roll is only as good as what your words can be pictured with, and stock libraries are full of objects and short of ideas. Abstract stretches get weak footage, so ask for motion graphics there instead. Stock people make a personal video feel like an advert. And music is a decision, not a default: in this session the user asked for no music only after hearing the first version.
Common questions
Will it cut anything I said? Not if you tell Vizard Agent to keep the full content. Otherwise shortening is a reasonable read of "edit this professionally".
Can I give it my own B-roll? Yes, and Vizard Agent will prefer it. Upload the clips with the video and say so.
What if a cutaway is wrong? Say which one and when. Vizard Agent swaps that clip rather than rebuilding the edit.