Is there a text alternative for the multimedia file?
1.2.1 Audio-only and Video-only (Prerecorded)
Introduction
This document provides information about the Acquia Web Governance accessibility check:
Is there a text alternative for the multimedia file?
What
This check verifies that any linked pre-recorded video-only files provide a text alternative, such as a transcript or a detailed text description. Users must be able to access the same information presented in the video through text, including any meaningful visual actions, on-screen text, and context that is necessary to understand the content.
Why
A text alternative must be provided for video-only content so that users who are blind or have low vision can obtain information that is otherwise only available visually. It also benefits users who cannot view video due to bandwidth limitations, device constraints, or situations where video playback is not possible. A text alternative additionally enables users to search, translate, and review the content without the need to play the video.
Who
Affected users
This check affects the following users who have:
Blindness or low vision: Who navigate websites with keyboard commands and use screen reader software.
No impairments: Who cannot access video due to bandwidth limitations, device constraints, or situations where video playback is not possible.
Examples
Pass example
A compliant video-only file includes a transcript that describes the meaningful visual information and any on-screen text. This allows users who cannot see the video to understand the content.
<video controls>
<source src="silent-product-demo.mp4" type="video/mp4">
</video>
<div id="transcript"> <h2>Transcript: Silent product demo</h2> <p>The video shows a user opening the app, selecting “Create new project”, and choosing the “Invoice” template. A confirmation message appears: “Project created successfully.” The user then navigates to Settings and turns on “Auto-save”.</p> </div>
Fail example
A common failure of this check occurs when a video-only file is provided without any transcript or text description. This leaves users who are unable to view the video without a way to obtain the information.
This section provides information on how to review and fix the issue.
How to review it
Identify all video content on the page and determine if any of it is video-only pre-recorded content, which means that the information is conveyed visually without an audio track.
You can use the Web Governance Browser Extension to identify the element on the page or in the HTML source code.
Check to verify that a text alternative is available on the page or through a clearly labeled link near the video. Ensure that the text alternative includes the essential information from the video, such as key actions, state changes, and any on-screen text that is needed to understand the content.
How to fix it
Provide a text transcript or detailed text description that presents the same information as the video-only content.
Include descriptions of meaningful visual actions, changes of state, and any on-screen text or labels that appear in the video.
Place the transcript on the same page as the video, or provide a clearly labeled link, for example, “Transcript”, immediately adjacent to the video.
Ensure that the transcript is actual text and not an image of text. This allows it to be read by screen readers and adapted when users zoom, reflow, copy, or translate the text, for example.
Is there a text alternative for the multimedia file?
1.2.1 Audio-only and Video-only (Prerecorded)
Introduction
This document provides information about the Acquia Web Governance accessibility check:
Is there a text alternative for the multimedia file?
What
This check verifies that any linked pre-recorded video-only files provide a text alternative, such as a transcript or a detailed text description. Users must be able to access the same information presented in the video through text, including any meaningful visual actions, on-screen text, and context that is necessary to understand the content.
Why
A text alternative must be provided for video-only content so that users who are blind or have low vision can obtain information that is otherwise only available visually. It also benefits users who cannot view video due to bandwidth limitations, device constraints, or situations where video playback is not possible. A text alternative additionally enables users to search, translate, and review the content without the need to play the video.
Who
Affected users
This check affects the following users who have:
Blindness or low vision: Who navigate websites with keyboard commands and use screen reader software.
No impairments: Who cannot access video due to bandwidth limitations, device constraints, or situations where video playback is not possible.
Examples
Pass example
A compliant video-only file includes a transcript that describes the meaningful visual information and any on-screen text. This allows users who cannot see the video to understand the content.
<video controls>
<source src="silent-product-demo.mp4" type="video/mp4">
</video>
<div id="transcript"> <h2>Transcript: Silent product demo</h2> <p>The video shows a user opening the app, selecting “Create new project”, and choosing the “Invoice” template. A confirmation message appears: “Project created successfully.” The user then navigates to Settings and turns on “Auto-save”.</p> </div>
Fail example
A common failure of this check occurs when a video-only file is provided without any transcript or text description. This leaves users who are unable to view the video without a way to obtain the information.
This section provides information on how to review and fix the issue.
How to review it
Identify all video content on the page and determine if any of it is video-only pre-recorded content, which means that the information is conveyed visually without an audio track.
You can use the Web Governance Browser Extension to identify the element on the page or in the HTML source code.
Check to verify that a text alternative is available on the page or through a clearly labeled link near the video. Ensure that the text alternative includes the essential information from the video, such as key actions, state changes, and any on-screen text that is needed to understand the content.
How to fix it
Provide a text transcript or detailed text description that presents the same information as the video-only content.
Include descriptions of meaningful visual actions, changes of state, and any on-screen text or labels that appear in the video.
Place the transcript on the same page as the video, or provide a clearly labeled link, for example, “Transcript”, immediately adjacent to the video.
Ensure that the transcript is actual text and not an image of text. This allows it to be read by screen readers and adapted when users zoom, reflow, copy, or translate the text, for example.
Web Governance