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v33.0.2

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Media

How to test each rule in the media group

This group deals with anything media related: videos, animations, audios, captions, etc.

Important If your page doesn't have any media or animations, you can skip this group alltogether.

Rule numberRuleHow to test
1.2.1Audio-only and video-only (prerecorded)Interaction or Code assessment
1.2.2Captions (prerecorded)Visual assessment
1.2.3Audio description or media alternative (prerecorded)Visual or Code assessment
1.2.4Captions (Live)Visual assessment
1.2.5Audio description (prerecorded)Interaction or Code assessment
1.4.2Audio controlInteraction or Code assessment
2.2.1Timing AdjustableInteraction or Code assessment
2.2.2Pause, Stop, HideInteraction or Code assessment
2.3.1Three flashes or below thresholdVisual or Code assessment

1.2.1 Audio-only and video-only (prerecorded)

Success criterion

Check your audio and video prerecorded medias and make sure you're providing a text transcript or other alternatives to that type of media.

1.2.2 Captions (prerecorded)

Success criterion

For prerecorded audio and video, check if your page has synchronized captions for the hearing impaired.

1.2.3 Audio description or media alternative (prerecorded)

Success criterion

For prerecorded audio and video, check if your page is providing an alternative for time-based media or an audio description of the content for the visually impaired.

For this rule, if all information is already given in the audio of the video, there's no need to follow it.

This rule is related to 1.2.5 Audio description (prerecorded). These two rules are different solutions for the same problem, you can choose to follow the one that better fits your content.

1.2.4 Captions (Live)

Success criterion

For live content, make sure captions will be provided.

1.2.5 Audio description (prerecorded)

Success criterion

For videos and video presentations, check if your page is providing an audio description for the visually impaired.

For this rule, if all information is already given in the audio of the video/video presentation, there's no need to follow it.

This rule is related to 1.2.3 Audio description or media alternative (prerecorded). These two rules are different solutions for the same problem, you can choose to follow the one that better fits your content.

1.4.2 Audio control

Success criterion

If your page has any audio that plays automatically for more than 3 seconds, make sure it has a way for the user to control it or stop it if they want to.

2.2.1 Timing adjustable

Success criterion

If you have any content that has a time limit that is shorter than twenty hours make sure it's following these rules

2.2.2 Pause, stop, hide

Success criterion

Check if there are moving, blinking, scrolling or auto-updating content on the page. Provide a way for the user to control them (pause, stop, hide, etc).

2.3.1 Three flashes or below threshold

Success criterion

Make sure your page doesn't have any flashing or rapidly blinking content with these characteristics.

Continue to Miscellaneous.

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