Progress captions

The phrase on screen with a thin bar under it that fills with the voice, a glowing head at its end, the words lighting up as they are said. Give a transcript with --words.

  • captions/progress
  • Captions
  • captions
  • Overlay with alpha
  • 6 s (1–120 s)
Style
Live in your browser
Progress captions at 16:9
0.00 / 6.00 s
npx volito render captions/progress --words talk.json --style tomato --out progress.mov
Playing live with volito/browser, the engine a render uses. Each tab lays the item out again for that shape, not a crop. The graphic is transparent; the grey stands in for your footage.

Render it

npx volito render captions/progress --words talk.json --out progress.mov

Captions take their timing from a transcript: --words reads Whisper JSON or [{w, s, e}], one entry a word. Add text to caption your own wording on the voice's timing; without a transcript, text runs at pace seconds a word. Starred words and the ones listed in accents are the key words.

That writes ProRes 4444 with alpha, ready to drop over footage. The same item in another shape, brand or format:

volito render captions/progress --words talk.json --aspect 9:16 --style cobalt --out progress-9x16.mov
volito render captions/progress --words talk.json --format mp4 --out progress.mp4
volito still captions/progress --t 2.3 --out progress.png
volito info captions/progress     # every prop and part
volito add captions/progress      # copy its source into ./motion to edit

From Node:

import { findItem, readWords, renderVideo } from "volito";

await renderVideo(findItem("captions/progress"), { words: readWords("talk.json"), out: "progress.mov" });

Or ask an agent with the MCP server connected: “Render the Volito progress captions (captions/progress) in 9:16, in our brand.”

Props

Set each with --prop name=value, or all at once with --props and a JSON object.

PropTypeDefaultTakes
text
what is said; leave empty to caption the transcript as it is. Wrap a word in *stars* for the accent
longtextA thin bar that fills as the *voice* goes on.≤ 600 chars
accents
Accent words
words to put in the accent wherever they are said, comma separated
text—≤ 120 chars
positionchoicebottombottom | center | top
sizechoicemediummedium | small | large
casechoiceas typedas typed | upper | lower | style
pace
Seconds per word
without a transcript
number0.320.08 – 2

Parts

Each part takes any move, ease or idle: --motion words.in=pop.

PartWhat it is
wordsthe caption words and everything drawn with them

Tags: captions, progress, subtitles, clean, podcast, transcript

More in Captions

Camera-follow captions

Each sentence written across a canvas far bigger than the frame while a camera follows the words as they are said: every word a step bigger than the last with the camera pulling back to keep it the same size (or the camera gliding along lines of text), motion blur on every move, and a pull-back at the sentence's end to show it whole. Give a transcript with --words; *starred* words and the ones in `accents` take the accent.

Karaoke captions

Social captions on the voice: a line or two at a time, the word being said lit by a pill that slides from word to word (or in the accent colour, or underlined), the rest of the line waiting dimmed. Give a transcript with --words; *starred* words and the ones in `accents` take the accent.

Pop captions

Big captions a few words at a time, each word landing on its own time with a pop — the newest one in the accent. Give a transcript with --words; *starred* words and the ones in `accents` take the second accent.

Subtitles

Clean subtitles timed to the voice: up to two lines at a time in the brand's text face, broken at pauses and sentence ends, on a dark box behind each line or with a shadow. Give a transcript with --words.

Marker captions

A highlighter swipes under each word as it is said and stays lit, a little crooked like a real pen, so the line fills with the brand's colour as it is spoken (or an underline stroke). Give a transcript with --words; *starred* words take the second accent.

Neon captions

The line hangs as unlit glass tubes and each word flickers on as it is said, glowing in the accent (accent words in the second accent) and drifting a hair once lit. Give a transcript with --words.