16. Pre-Recorded Audio-Only, Video-Only, and Animations
Pre-Recorded Audio Only
Identify Content
Identify all pre-recorded audio-only content.
EXCLUDE any audio-only content that:
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Is clearly labeled as a media alternative for text, OR
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Consists of short sounds used to notify the user, such as confirmation beeps and error notifications.
If there is no such content, the result for the following test ID(s) is DOES NOT APPLY: 16.A.
Note:
- If audio is synchronized with video, slides, animations, or other time-based visual media, use the synchronized media tests in Section 17.
Check 1.2.1-audio-transcript-text
Test Name | Test ID | Test Condition |
---|---|---|
1.2.1-audio-transcript-text | 16.A | A text-based alternative is provided for audio-only content that provides an accurate and complete representation of the audio-only content. |
Applicability:
This Test Condition DOES NOT APPLY (DNA) if there is no pre-recorded audio-only content.
How to Test:
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Determine if, for each audio-only content, a transcript is provided.
- Determine whether each transcript is text, (i.e., an image of a transcript would not be sufficient to pass this test).
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Play the audio-only content entirely while reviewing the transcript.
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Determine whether the information in the transcript is an accurate, correctly sequenced, and complete representation of the audio-only content.
- To be a complete representation of the content, the transcript must also describe relevant sounds in addition to dialogue, such as doors banging, sirens wailing, identification of speakers in dialogue, etc.
Evaluate Results:
If ALL of the following are TRUE, then the content PASSES:
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A text-based transcript is provided for all audio-only content, AND
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The transcript is an accurate and complete representation of the audio-only content.
Pre-recorded Video
Identify Content
Identify all pre-recorded video-only content.
- In a video-only presentation, information is presented in a variety of ways including animation, text or graphics, the setting and background, the actions and expressions of people, animals, etc.
EXCLUDE any video-only intended as a media alternative for text if it is clearly labeled as such.
If there is no such content, the result for the following test ID(s) is DOES NOT APPLY: 16.B.
Note:
- If the video is accompanied by timed sounds or meaningful dialog, it is not video-only; use the synchronized media tests in section 17.
Check 1.2.1-video- alternative-equivalent
Test Name | Test ID | Test Condition |
---|---|---|
1.2.1-video- alternative-equivalent | 16.B | The video-only content information is also available through an equivalent text or audio alternative. |
Applicability:
This Test Condition DOES NOT APPLY (DNA) if there is no pre-recorded video-only content.
How to Test:
- Determine whether a text or audio alternative is provided for all video-only content (such as a transcript in text that provides a description of video content and actions or an audio track).
Note: An image of a transcript does not meet this requirement.
-
Play the video-only content entirely while reviewing the text or audio alternative.
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Determine whether the information in the text or audio alternative includes the same information that the video-only presentation displays (e.g., if the video includes multiple characters, the alternative must identify which character is associated with each depicted action).
Evaluate Results:
If ALL of the following are TRUE, then the content PASSES:
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A text or audio alternative is provided for all video-only content, AND
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The text or audio alternative is an accurate and complete representation of the video-only content.
Applicable Standards
Section 508/WCAG Success Criteria | Baseline Requirements |
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WCAG SC 1.2.1 Audio-Only and Video-Only (Prerecorded): For prerecorded audio-only and prerecorded video-only media, the following are true, except when the audio or video is a media alternative for text and is clearly labeled as such:<ul><li>Prerecorded Audio-only: An alternative for time-based media is provided that presents equivalent information for prerecorded audio-only content.</li><li>Prerecorded Video-only: Either an alternative for time-based media or an audio track is provided that presents equivalent information for prerecorded video-only content.</li></ul> | 16. Audio-Only and Video-Only |
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