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# 1.2.2 Captions (Prerecorded)

- Level: A
- Guideline: 1.2 Time-based Media
- Principle: 1 Perceivable

## What it is

Captions are provided for all prerecorded audio content in synchronized media, except when the media is a media alternative for text and is clearly labeled as such.

## How to test

- Check: Captions are provided for all prerecorded audio content in synchronized media, except when the media is a media alternative for text and is clearly labeled as such.
- Use the sufficient techniques below as acceptable methods when applicable.
- Confirm none of the common failures apply.

## Sufficient techniques (W3C)

- G93: Providing open (always visible) captions
- G87: Providing closed captions
- SM11: Providing captions through synchronized text streams in SMIL 1.0
- SM12: Providing captions through synchronized text streams in SMIL 2.0
- H95: Using the track element to provide captions
- Using any readily available media format that has a video player that supports closed captioning

## Common failures (W3C)

- F8: Failure of Success Criterion 1.2.2 due to captions omitting some dialogue or important sound effects
- F75: Failure of Success Criterion 1.2.2 by providing synchronized media without captions when the synchronized media presents more information than is presented on the page
- F74: Failure of Success Criterion 1.2.2 and 1.2.8 due to not labeling a synchronized media alternative to text as an alternative

## Resources

- WCAG 2.2 SC: https://www.w3.org/TR/WCAG22/#captions-prerecorded
- Understanding: https://www.w3.org/WAI/WCAG22/Understanding/captions-prerecorded.html
- Quick reference: https://www.w3.org/WAI/WCAG22/quickref/?versions=2.2#captions-prerecorded

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