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AI Captions in Live Clipping

Written by Nick Gutierrez

The new Captions in Live Clipping introduces the ability for users to overlay customizable, burned-in AI captions directly onto their video clips and export AI closed captions within Studio.

This eliminates the dependency on external editing software, reducing the time and complexity involved in preparing short-form video content for social media.

By integrating AI-powered transcription directly into the live clipping workflow, we ensure users can maintain the speed and efficiency for which Grabyo is known.

Accessing Captions


  1. Select the IN and OUT points of your content in the timeline

  2. Select the ASPECT RATIO of your clip

  3. Click on CAPTIONS in the top left corner of the content preview

  4. On the CAPTIONS SIDEBAR, click on GENERATE AI OPEN CAPTIONS or GENERATE AI CLOSED CAPTIONS

  5. The generated captions will be shown once the process is completed.

📕 Note: Users can stop the AI generation process if it is taking too long or if they have made a mistake.

📕 Note: Unlike AI open captions, AI closed captions can be downloaded from the Campaign page and exported to all supported destinations. Additionally, they can be optionally exported to file-based destinations such as S3, Google, and others.

Captioning formatting


Item

Details

Line splitting

Captions auto-split into two lines of similar length when applicable

Max duration

7 seconds for 16:9 videos; 3 seconds for 9:16 videos

Aspect-ratio changes

Must regenerate captions (rerun transcription) after changing aspect ratio to get correct formatting

Post-export behaviour

Captions are removed from the timeline after export; edits must be redone after regeneration

Burnt-in captions

Burnt-in captions create a new clip in the Campaign; export separate clips for versions with and without captions

📕 Note: AI Closed captions do not support styling options; only AI Open captions offer this feature.

Caption Translations


Users can select 1-3 extra languages to translate the clip into.

📕 Note: Open captions are burnt into the video and therefore require multiple clips to be created for different languages.

Editing Captions


Edit the text

Action

Details

Change a word

Click the caption in the sidebar to start editing

Make a new line

Captions auto-wrap by video size; press Enter to force a new line

Split a caption into two

Place the cursor where to split, press Shift + Enter to create a new caption below

Delete a caption

Hover over the caption and click the bin icon on the right-hand side

📕 Note: When splitting a caption into two, the duration of the original caption will be split across both captions.

How caption styling works


A clip has one primary style applied across the caption track. More specific changes can then be layered on top when an individual caption needs to look different.

Styling level

What it controls

Typical use

Primary style

The default style applied across the caption track

Keep every caption on-brand with a consistent base look

Speaker style

A saved style applied to every caption from one detected speaker

Visually separate an interviewer from an interviewee

Per-caption override

A different saved style applied to a single caption segment

Make one caption stand out, or call out a quote

Inline word styling

Formatting applied to selected words inside a caption

Highlight a key word or a short phrase

Drag-and-drop position

The on-screen position of the current caption on the preview

Move a caption clear of action, faces or lower thirds

Select a style for the captions

✅ Tip: Open the Styles tab in the sidebar, choose from the default Grabyo styles or your custom styles, and click a style card to apply it to the captions. To upload custom fonts, contact help@grabyo.com and provide fonts in WOFF or WOFF2 format.

Create, Edit, Save Styles (Edit as New), and Delete

  • Click Create style at the top of the sidebar to add a new style.

  • To change an existing style, open it and select Edit. To modify and save as a separate style, choose Edit as New in the edit sidebar.

  • Delete a style by clicking the bin icon on the style’s bottom toolbar.

  • The following attributes can be used to create a style in Grabyo:

Attribute

Description

Notes

Name

Name of the style to be saved

Font

Font used for captions (includes organisation's custom fonts)

Custom fonts must be uploaded via tools (WOFF/WOFF2)

Font size

Exact font size applied to captions

Changes in video resolution will affect the appearance

Font color

Colour of the caption text

Font style

Text styling options

Bold, Italic, Underline

Font alignment

Text alignment direction and placement

Center, Left-to-right, Right-to-left

Vertical position

Vertical anchor for captions

Adjusts offset relative to chosen alignment (top/middle/bottom)

Vertical margin

Margin distance from the chosen vertical edge

Applied from top when position = top, from bottom when position = bottom

Background settings

Background fill behind captions

Colour and opacity are editable

Stroke settings

Border around caption text

Border weight, colour, and opacity are editable

Effects

Animation and treatment applied as the caption appears

See the effects table below

📕 Note: A user cannot delete all styles in their account.

Effects


Effects are configured inside the style controls, alongside the core attributes. They help captions hold up against busy video backgrounds and give social-first clips a more dynamic look. Where available, effect settings such as duration and distance can be configured and previewed before the style is applied.

Effect

Description

Fade

Animates the caption in or out with a fade

Colour change

Changes the caption colour as part of the effect

Slide up / down

Moves the caption vertically as it appears or transitions

Slide left / right

Moves the caption horizontally as it appears or transitions

Pop

Adds a more noticeable pop-style animation to the caption

Blur

Applies blur to the caption text

Drop shadow

Adds a shadow behind the text

Gradient bar

Adds a gradient bar behind or around the caption text

✅ Tip: Check readability after applying an effect, especially over busy or high-contrast footage.

Style a word or phrase inline

Inline editing applies formatting to selected text inside a caption, so only part of a caption changes rather than the whole segment.

  1. Select the caption that needs editing.

  2. Click into the caption text in the sidebar or on the video preview.

  3. Select a single word, or several words, depending on the change required.

  4. Apply the inline formatting controls to the selected text.

  5. Review the caption on the preview to confirm it still reads clearly.

Override the style on a single caption

A saved style can replace the primary style on one caption segment, leaving the rest of the clip untouched. This is useful for emphasis, speaker changes, quote callouts, or short sections where the default style is not clear enough on screen.

  1. Generate or open the captions for the clip and apply the primary style.

  2. Find the caption segment that needs a different style.

  3. Open the style override control for that caption.

  4. Select the saved style to apply to that caption only.

  5. Review the preview to confirm the override is correct.

📕 Note: Use overrides for exceptions. Heavy use makes a clip harder to maintain — the primary style should remain the main source of consistency.

Reposition a caption with drag-and-drop

The current caption can be moved directly on the video preview, without changing the style's position settings.

  1. Open the captions on the clip and select the caption that needs repositioning.

  2. Hover over the video preview until the caption can be selected.

  3. Click and drag the caption to its new position, then release.

  4. Play or scrub the clip to confirm the caption does not cover important action, faces, graphics or lower thirds.

✅ Tip: Use drag-and-drop when a caption needs to move for one specific shot. Use the style's vertical position and margin settings when the same placement should apply across the whole clip.

Manage speakers

When more than one speaker is detected in a clip, Grabyo shows speaker controls in the captions sidebar. Speakers can be reviewed, corrected, renamed, styled individually, and optionally shown on screen as a caption prefix.

Capability

Description

Automatic detection

Speakers are detected from the generated transcript; controls appear when more than one is found

Speaker labels

Each caption segment shows the speaker it is assigned to

Set speaker

Change the speaker on a caption when the detected assignment is wrong

Rename speaker

Give a speaker a clearer name for review and on-screen use

Style by speaker

Apply a saved style to every caption from one speaker

Show speaker on screen

Display the speaker name as a prefix in the visible caption output

Set or change a speaker

  1. Open the generated captions in the captions sidebar.

  2. Find the caption segment with the assignment that needs changing.

  3. Open the speaker control for that caption.

  4. Select the correct speaker, or add a new speaker if one is not listed.

  5. Review nearby captions to confirm the assignment is consistent.

Rename a speaker

  1. Open the speaker menu on a caption or speaker entry.

  2. Select CHANGE NAME.

  3. Enter the new name and save.

  4. Confirm the name appears in the caption list and speaker controls.

Apply a style to a speaker

  1. Find a caption assigned to the speaker to be styled.

  2. Open the style control for that caption.

  3. Select the saved style to use.

  4. Choose whether to apply it to this caption only, or to all captions from that speaker.

  5. Review the clip to confirm the speaker style is applied correctly.

📕 Note: A speaker style applies to every caption from that speaker. A per-caption override applies to one caption segment only.

Show speaker names on screen

  1. Open the speaker menu for the relevant speaker or caption.

  2. Select the option to show the speaker on screen.

  3. Check the preview to confirm the name appears as a caption prefix.

  4. Rename the speaker if the visible name needs to be clearer.

  5. Export the clip once speaker names and styles are correct.

✅ Tip: Rename speakers before turning on on-screen prefixes, and check that the prefix does not make captions too long to read comfortably.

Best practice for multi-speaker clips

  • Review speaker assignments before export, especially where voices are similar or speech overlaps.

  • Use speaker-specific styles sparingly so the clip stays visually consistent.

  • Test speaker styles against the video background to confirm captions remain legible.

📕 Note: Speaker detection accuracy depends on the source audio. Similar voices, overlapping speech, background noise or poor audio quality may need manual correction. Renaming a speaker changes the label only — it does not rewrite the caption text.

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