An AI video subtitle generator inside the edit

Why captions matter for AI drama

A lot of short-form video is watched with the sound off. Without captions, a muted dialogue scene is just faces with moving mouths. Captions let the story work with the sound off. Captions also help viewers follow fast dialogue, accents and overlapping voices.

For drama, captions are part of the picture. Their size, position and style affect how the frame reads, especially in a vertical 9:16 frame where the bottom of the screen is shared with the platform's own buttons.

Captions also help reach. A viewer who catches only half a line through a noisy room can read the rest. For dialogue with strong accents or names the audience hasn't heard before, captions keep them from losing the thread.

What goes wrong with subtitles on AI video

The usual failure is timing. Captions are generated from the script and placed where the line was meant to go, while the voiced take is shorter or longer, or a shot was trimmed in the edit. The words appear early, late, or under the wrong person.

The second failure is placement: captions that sit over a face, or low enough to be covered by on-screen controls. The third is style that fights the drama, such as bouncy, colorful text over a tense scene.

A fourth, specific to AI video, is the line that doesn't match the take. If the voiced line was edited after the captions were made, the screen says one thing and the character says another. Treat captions as the last step in the edit, after the voices and trims are final.

• Time captions to the edited cut instead of the script
• Keep them clear of faces and platform controls
• Match the style to the tone of the scene

How ShowMaker handles captions

Captions are part of ShowMaker's Editor, the same place you assemble the timeline, trim shots and add B-roll, score and sound. Since they're added to the edit, you caption the film as it actually plays.

There are several caption styles to choose from, so a quiet confession and a shouted reveal don't have to look the same. The dialogue comes from the voices you cast: each character has a fixed voice, and lines can be performed with Express delivery tags.

Keep caption lines short. Two lines on screen at most, broken at natural pauses, read far better than a long sentence that wraps three times. In a vertical frame, keep them well above the bottom edge, where the platform places its captions, usernames and buttons.

Checking before you publish

Watch the captioned cut once with the sound off, as a muted viewer would. If you can follow the scene, the captions are doing their job. If a caption lands on the wrong shot, re-check the trims around it. Then download the final cut or publish to social. For more on timing problems, see the blog article on AI video captions out of sync.

If you publish both a vertical and a horizontal version of the same story, check the captions on each. A caption position that works in a wide frame can sit over a face in a tall one. A Hybrid project frames each version for its own shape, so treat each version's captions as their own check.

Finally, read the captions as text, once, without the picture. Typos, a character's name spelled two ways, or a line that no longer matches the voiced take are all easier to spot that way, and they are the mistakes viewers screenshot.