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+
+# 1.2.4 Captions (Live)
+
+- Level: AA
+- Guideline: 1.2 Time-based Media
+- Principle: 1 Perceivable
+
+## What it is
+
+Captions are provided for all live audio content in synchronized media.
+
+## How to test
+
+- Check: Captions are provided for all live audio content in synchronized media.
+- Use the sufficient techniques below as acceptable methods when applicable.
+
+## Sufficient techniques (W3C)
+
+- G9: Creating captions for live synchronized media
+- 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
+- Using any readily available media format that has a video player that supports closed captioning
+
+## Resources
+
+- WCAG 2.2 SC: https://www.w3.org/TR/WCAG22/#captions-live
+- Understanding: https://www.w3.org/WAI/WCAG22/Understanding/captions-live.html
+- Quick reference: https://www.w3.org/WAI/WCAG22/quickref/?versions=2.2#captions-live
+
+[Back to 1 Perceivable index](index.md)