How to cut fifteen seconds out of a whole day's footage
Upload the day's footage and give Vizard Agent a hard fifteen-second limit. Vizard Agent shot-logs everything, searches separately for each kind of moment you want, maps where other people appear so the cut can stay on its subject, and keeps only what survives the limit.
What is the short version?
A short limit is not a constraint on the edit, it is the edit. Fifteen seconds from an afternoon means roughly four shots, so the whole job is deciding which four, and that decision needs the footage read rather than remembered.
- Go to Vizard Agent and upload everything from the day.
- Say fifteen seconds and mean it.
- Say who the video is about.
What do you need before you start?
The footage and a subject. Vizard Agent reads all of it and searches for the kinds of moment you name, so a list of qualities — striking, expressive, energetic — is more useful than a list of timestamps.
- All the footage. However much there is.
- The limit. Fifteen seconds, or whatever it is.
- The subject. Who the video follows.
- The qualities. What makes a moment worth the space.
- A previous cut. If there is one to improve on.
What do you type into Vizard Agent?
State the limit first and the subject second. Vizard Agent treats a stated maximum as a hard boundary rather than as a target to aim near, and that changes the selection completely: at fifteen seconds nothing merely good survives the cut.
Prompt
Variants worth knowing:
- Searched by quality. Striking, expressive, energetic, calm.
- One subject followed. Others present but secondary.
- Compared to a longer cut. Where one already exists.
What does Vizard Agent actually do?
Here is the order Vizard Agent worked in on a real fifteen-second cut from a day's footage. The method is in steps seven to seventeen: rather than one search for good moments, it searched separately for each kind of moment it needed.
- Reads the project ledger for what was uploaded.
- Probes the footage and lists the workspace.
- Downloads the footage locally and checks the analysis tools.
- Shot-logs the whole recording.
- Extracts survey frames and tiles them into contact sheets.
- Searches for the moments where the subject is filming themselves.
- Searches separately for the underwater and diving shots.
- Reviews five contact sheets covering the whole recording.
- Probes the previous delivery, searches for the energetic moving shots, then for expressive solo close-ups, maps where other faces appear and samples the earlier longer cut for comparison.
Step 9's face mapping is the quiet one. A day with several people in it produces plenty of good shots that are not of your subject, and knowing where the others appear is how a fifteen-second cut stays about one person.
What does the result look like?
A fifteen-second vertical cut: three or four moments, each one chosen by Vizard Agent out of an entire day's footage against a stated quality, following one person throughout, with nothing at all included merely because it happened to be acceptable.
The brevity is what makes it strong. At fifteen seconds the fourth-best shot never appears, and the difference between a video built from the best four moments and one built from the best twelve is much larger than the length difference suggests.
When does this not work well?
A hard limit throws away almost everything you filmed, and that is sometimes exactly the wrong trade to make. These are the situations where Vizard Agent will produce a strong fifteen seconds that is not what you actually wanted.
- Fifteen seconds tells no story. It shows moments; it does not narrate a day.
- The best shots may not sit together. Four unrelated highlights can feel arbitrary.
- Others appear in the footage. Posting a day out includes people who did not decide to be in it.
- A weak day stays weak. The limit exposes footage rather than flattering it.
- Short cuts hide context. Nobody watching knows what the day was.
How do you fix a result that came back wrong?
Name the moment you wanted instead, and say why it beats what came back. Vizard Agent keeps the full shot log, all the contact sheets, every per-quality search and the face map, so the selection can change without re-reading the footage.
- "You missed the best dive." Re-selected from the diving search already run.
- "There is too much of her friend." Re-weighted using the face map.
- "Make it thirty seconds." Rebuilt from the same searches at the new limit.
How does Vizard Agent compare to doing it yourself?
By hand this means watching a day's footage looking for the best fifteen seconds, which almost nobody does properly — you find four decent shots in the first ten minutes and stop looking, and the best shot is usually near the end.
| By hand | Vizard Agent | |
|---|---|---|
| Coverage | Watch until you find enough | Shot-logged in full |
| Searching | One pass for "good bits" | A separate search per quality |
| Staying on subject | Notice afterwards | Other faces mapped deliberately |
| The limit | Creeps to thirty seconds | Held as a hard boundary |
Common questions
Is fifteen seconds really enough? For moments, yes. For a story, no — say so and Vizard Agent builds a longer cut instead.
How does Vizard Agent choose? Vizard Agent searches for each quality you name separately rather than looking once for the best bits.
Can it stay on one person? Yes. Vizard Agent maps where other faces appear so the cut keeps its subject.
How much footage can it read? A whole day. Vizard Agent shot-logs all of it before selecting anything.
Can I get a longer version too? Yes. Vizard Agent builds one from the same searches at a different limit.
Why search per quality instead of once? Because "the best moments" is not a thing you can search for, whereas "underwater diving shots" and "expressive close-ups" are. Several specific searches beat one vague one every time.
What if I already have a longer cut? Point at it. Vizard Agent samples it for comparison rather than starting from nothing.
Does it use the original audio? Where it helps. At fifteen seconds Vizard Agent usually finds music carries it better.
What about other people in the footage? They appear unless you say otherwise, and posting them is your decision to make.
Why does a hard limit produce a better video? Because it removes the option of including something adequate. Vizard Agent has to leave out the fifth-best shot, and a cut made only of the strongest few moments reads as considered rather than as everything that fitted.
Is fifteen seconds the right length for a phone? It is a common one. Vizard Agent will hit any limit you name, and the shorter the cut the more the choice of moments does the work rather than the pacing.
Should I film differently knowing this? A little. Vizard Agent can only pick from what exists, so a handful of deliberately striking shots beats an hour of continuous recording when the output is going to be fifteen seconds.
Does Vizard Agent check the finished cut? Yes. It reviews the selected moments against the contact sheets before delivery.