Video Duration
What is video duration?
Video duration defines the target length of your final video.
In ReelBot, duration is not a cosmetic setting — it is a structural constraint that influences:
- script length
- voice pacing
- caption density
- visual sequencing
Duration should be decided early and changed deliberately.
Available duration options
ReelBot currently supports the following durations:
- 15 seconds
- 30 seconds
- 45 seconds
- 60 seconds
These options are optimized for short-form platforms and predictable pacing.
What duration affects
Duration directly controls:
Script length
- character limits are enforced based on duration
- longer durations allow more content
- shorter durations force concision
Scripts are generated to fit, not overflow.
Voice pacing
- voiceover generation respects the selected duration
- speech rhythm is adjusted automatically
- captions and visuals follow voice timing
Duration defines the tempo of delivery.
Caption behavior
- longer durations allow more readable pacing
- shorter durations increase caption density
Caption timing remains accurate via speech marks, but pacing originates from duration.
Visual sequencing
- B-roll is trimmed or looped to match voice length
- cinematic videos adapt visuals to duration
- no manual timeline editing is required
Duration anchors the entire composition.
When duration is applied
Duration:
- applies immediately when selected
- persists across drafts
- is included in templates
- is restored when editing projects
It remains active until explicitly changed.
Changing duration safely
Changing duration after content has been generated can impact downstream steps.
If you change duration after:
- topic generation → script & voice must be regenerated
- script generation → script & voice must be regenerated
- voice generation → voice must be regenerated
ReelBot will:
- show a warning dialog
- list affected steps
- require confirmation before clearing anything
No work is lost silently.
Duration and regeneration
Duration changes are treated as structural changes.
This means:
- regeneration is required to maintain pacing integrity
- old voice timing cannot be reused
- captions must realign to new pacing
This protects output quality.
Duration and templates
Duration is stored in Templates.
Using a template:
- preselects duration
- enforces consistent pacing across batches
- avoids repeated decisions
Templates are the best way to standardize duration.
Choosing the right duration
General guidance:
- 15s → hooks, quotes, fast insights
- 30s → explanations, storytelling
- 45s → deeper educational content
- 60s → structured tutorials or narratives
Choose duration based on message, not platform alone.
Common mistakes to avoid
- changing duration late in the flow
- using visuals to compensate for rushed scripts
- forcing long messages into short durations
- switching durations mid-batch
Most pacing problems start with duration choice.
Best practices
For consistent results:
- decide duration before generating content
- keep one duration per batch
- save winning durations as templates
- regenerate upstream when changing duration
Discipline beats experimentation at scale.
The CreatorOps perspective
In CreatorOps, duration defines system boundaries.
By fixing duration early:
- scripts become predictable
- voice pacing stabilizes
- regeneration becomes safe
- batching becomes scalable
ReelBot treats duration as infrastructure — not preference.
Related topics
- Script Generation
- Voiceover Generation
- Regeneration & Safe Iteration
- Templates
Choose duration intentionally — everything else follows.