How to cut a two-camera interview when the cameras do not match
Upload both camera files and tell Vizard Agent which is the wide and which is the close-up. Vizard Agent checks the audio sync between them, verifies it holds across the whole take rather than only at the start, measures the green screen, and cuts one edit into the formats you need.
What is the short version?
Two cameras on one interview is the cheapest way to make it look produced. The catch is that consumer cameras rarely record at the same frame rate, and two clocks running at different speeds drift apart over a few minutes.
- Go to Vizard Agent and upload both camera files.
- Say which is the wide angle and which is the close-up.
- Say which output formats you need.
What do you need before you start?
Both takes in full, plus any background material. Vizard Agent works out the sync from the audio itself, so no clapperboard is required at the shoot. Uploading the complete takes does matter, because drift can only be measured across a whole recording.
- Both cameras. The complete takes, untrimmed.
- Which is which. Wide, close-up, or another angle.
- The background. A reference image if you are keying.
- The formats. Widescreen, vertical, or both.
- A style reference. A video whose look you want.
What do you type into Vizard Agent?
Name the cameras and their roles. Vizard Agent cuts between them on the interview's own rhythm once it knows which is which, and stating the frame rates is unnecessary — it reads them, and reads the drift they cause.
Prompt
Variants worth knowing:
- Two formats from one edit. Rather than two separate jobs.
- Keyed and composited. Where the shoot used a green screen.
- A reference video. For the cutting style rather than the look.
What does Vizard Agent actually do?
Here is the order Vizard Agent worked in on a real two-camera interview. Steps ten and eleven are the ones that save the edit: it checks the sync, and then it checks the sync is still right at the end of the take.
- Checks the workspace and the past project notes.
- Looks at the background reference image and the logo file.
- Probes all three video files and samples frames from each.
- Reviews camera A's frames, camera B's frames and the reference video's frames.
- Downloads the footage and loads the multicamera guidance.
- Checks the audio sync between the two cameras.
- Verifies the sync stability across the whole take, not only at the start.
- Transcribes the interview and analyses the reference style.
- Inspects the green screen coverage at high resolution, measures the key colour and the screen's extent, and checks the frame edges for anything that is not green.
Step 7 is the one that separates a usable multicam edit from an unusable one. Two cameras at 23.976 and 29.97 frames a second can be perfectly aligned at the top of a take and visibly out by the end, and a single sync point at the start hides that completely.
What does the result look like?
The wide camera this was built from measures 3840x2160 at 23.976fps and runs 233.74 seconds, with uncompressed audio. From it and the close-up camera comes one edit delivered in two shapes: widescreen for a channel and vertical for social, both cut from the same synced pair.
The two formats are one job rather than two. Re-cutting a multicam edit for vertical from scratch means re-syncing and re-deciding every shot, whereas reframing an existing edit keeps the timing that was already approved.
When does this not work well?
Two cameras that were not set up together as a matched pair create problems no edit can fully hide, and Vizard Agent will report them rather than quietly living with them. These are the ones worth knowing before the shoot rather than after.
- Different frame rates drift. Correctable, but it has to be measured first.
- Mismatched colour shows at every cut. Two camera brands rarely agree.
- A green screen with gaps cannot be keyed. Coverage has to reach the frame edges.
- Separate audio needs its own sync. A recorder is a third clock.
- One good camera beats two poor ones. Coverage does not fix framing.
How do you fix a result that came back wrong?
Say where it goes wrong and at what timecode. Vizard Agent keeps the sync measurements, all the frame samples, the measured key colour and the transcript, so the cutting or the key can change without re-syncing the cameras.
- "The close-up drifts near the end." Re-synced against the stability measurements.
- "The key eats his shoulder." Re-measured and the threshold adjusted.
- "Cut to the wide more often." Re-selected against the transcript.
How does Vizard Agent compare to doing it yourself?
By hand this means syncing two files by waveform, cutting between them happily, and then discovering at minute four that the lips no longer match the words. The fix is a drift correction most people do not even know to look for.
| By hand | Vizard Agent | |
|---|---|---|
| Sync | Line up the waveforms once | Checked, then verified across the take |
| Drift | Discovered at the end | Measured before anything is cut |
| The key | Slide a threshold | Key colour and coverage measured |
| Two formats | Two separate edits | One edit, reframed |
Common questions
Do I need a clapperboard? No. Vizard Agent syncs from the audio on both cameras.
What if the cameras used different frame rates? That is the common case. Vizard Agent measures the resulting drift and corrects for it.
Can it deliver widescreen and vertical? Yes, from one edit. Vizard Agent reframes it, keeping the timing you already approved.
Does it handle green screen? Yes. Vizard Agent measures the key colour and checks the coverage reaches the frame edges.
How does it decide when to cut? Vizard Agent cuts on the interview's rhythm in the transcript, plus any reference style you supply.
Why check the sync at the end as well as the start? Because cameras with different frame rates start together and separate slowly. A single sync point at the top of a take is exactly how a drift goes unnoticed until publication.
Can it use a separate audio recorder? Yes, though that is a third clock and needs its own sync check.
What if the colours do not match? Vizard Agent grades toward one camera, though very different sensors have a limit.
How long a take can it handle? Any. Longer takes make the drift measurement more important, not less.
Is a second camera worth the trouble? Usually yes. Vizard Agent can cut between two angles on the interview's own rhythm, which turns a static talking head into something that holds attention without any of the footage changing.
What if one camera stopped recording? Vizard Agent works with what covers each moment, cutting to the surviving angle where the other has nothing. A gap in one camera limits the options rather than breaking the edit.
Should both cameras record audio? Yes, even a poor track. Vizard Agent syncs from the sound, so a camera recording only picture has nothing to align against.
Does Vizard Agent check the finished edit? Yes. It reviews the cuts and the sync before delivery.