---
title: "Auto Caption"
canonical: "https://blitzreels.com/glossary/auto-caption"
---

# Auto Caption

URL: https://blitzreels.com/glossary/auto-caption
Markdown URL: https://blitzreels.com/glossary/auto-caption.md
Category: Captions & Subtitles

## Definition

Auto captioning is the process of automatically generating text captions from spoken audio in a video using AI speech recognition, without manual transcription.

## Extended Definition

Auto caption technology uses automatic speech recognition (ASR) models to convert spoken words into timed text overlays. Modern auto caption engines achieve 95%+ accuracy in English and support 50+ languages. The generated captions include word-level timing for animated text effects like word-by-word highlighting. Auto captions are essential for accessibility (deaf/hard-of-hearing viewers), engagement (85% of social media video is watched without sound), and SEO (search engines can index caption text). BlitzReels auto-generates captions with word-level sync across 50+ languages and offers 30+ visual styles for the caption overlay.

## Related Terms

- ai-captions
- word-level-sync
- caption-styles
- transcription

## Search Terms

- auto caption
- automatic captions
- AI captions
- auto subtitle generator
- speech to text captions