Perceivable 1.2 Time-Based Media
Provide alternatives for time-based media.
Examples
- Provide captions and transcripts that can be read by a screen reader for audio and video.
- Provide transcripts for audio and video that can be read by a refreshable braille reader at the reader’s pace.
- Provide extra audio descriptions in video when the video audio is insufficient to describe what is happening on the screen.
Success Criteria
| Criterion | Level | Description |
|---|---|---|
| 1.2.1 | A | Alternative content is provided for all prerecorded audio and video. |
| 1.2.2 | A | Captions are provided for all prerecorded video. |
| 1.2.3 | A | Audio descriptions or an alternative are provided for all prerecorded video. |
| 1.2.4 | AA | Captions are provided for live audio content. |
| 1.2.5 | AA | Audio descriptions are provided for all prerecorded video. |
| 1.2.6 | AAA | Sign language interpretation is provided for all prerecorded audio content. |
| 1.2.7 | AAA | Extended audio descriptions are provided for all prerecorded video. |
| 1.2.8 | AAA | A media alternative is provided for all prerecorded time-based media. |
| 1.2.9 | AAA | A media alternative is provided for all live audio. |