Multi-speaker vertical video

AI active-speaker video reframing for 9:16 clips

LumiClip analyzes who is speaking across a conversation and plans a vertical layout that follows the relevant participant, using single-speaker, split, or picture-in-picture framing when appropriate.

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Quick definition

What does this workflow do?

Active-speaker reframing combines audio-speaker cues with visual tracking to decide who belongs in a vertical crop at each moment. It differs from a fixed center crop, which cannot respond when speakers change, move, overlap, or react.

What you can create

Speaker-following crops

Keep the current speaker prominent instead of leaving the vertical frame fixed in the center.

Multi-host podcast clips

Adapt conversations where hosts and guests alternate throughout the selected moment.

Panel and interview layouts

Use single, split, or picture-in-picture compositions according to the exchange.

Simple workflow

How it works

  1. STEP 1

    Add a multi-speaker video

    Upload an interview, video podcast, panel, call, or other landscape conversation.

  2. STEP 2

    Analyze the active speaker

    LumiClip uses speech and visual signals to plan the vertical framing across the clip.

  3. STEP 3

    Preview every transition

    Review speaker switches, overlaps, reactions, and crop safe areas before exporting.

Features for this job

Per-frame speaker detection

Track changes during the clip instead of choosing one static crop for the entire export.

Adaptive layouts

Use a single speaker when one person talks, with split or picture-in-picture options for overlap and reactions.

Subject tracking

Keep a moving or off-center participant visible inside the 9:16 composition.

Caption-safe framing

Plan the crop together with word-level captions and vertical safe areas.

Common use cases

Video podcasts

Follow hosts and guests as the conversation moves between participants.

Interviews

Keep the person delivering the selected answer visible and correctly framed.

Panels and calls

Create vertical excerpts from recordings that contain several possible subjects.

Frequently asked questions

How is active-speaker reframing different from a center crop?

A center crop stays fixed. Active-speaker reframing changes the crop or layout as the relevant participant changes.

What happens when two people speak at once?

The layout can use a split composition when genuine overlap makes both participants relevant. Preview the result before export.

Does it work for silent reactions?

Picture-in-picture can retain a relevant reaction while keeping the speaker prominent when the composition supports it.

Do I still need to review the crop?

Yes. Slides, products, gestures, stage layouts, and unusual camera angles may require a manual adjustment.

Create for 9:16 clips with LumiClip

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