Web Accessibility

Media and Multimedia

Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About live audio-only and accessibility

Live audio is any sound captured from a real-world event and transmitted without delay to a webpage. There may be a short delay to allow some censoring, but not enough to allow for significant editing. Making live audio accessible will benefit people who have a hearing disability.

Single A

Making the intent of your audio clear

Because an audio file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the audio, or a descriptive label of the audio and:

Operating the audio in a webpage

People must be able to operate the audio by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the audio including pausing and restarting, and must not trap the keyboard.

Don't enable autoplay, because the audio file will 'speak' over the top of the screen reader and sound confusing, but if sound is played automatically, the

Also,

Double A

Making the intent of your audio clear

Captions should be provided for live audio content, either open (always visible), or closed captions.

Operating the audio in a webpage

The controls to operate the audio should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so developers should keep the default 'focus' functionality of the browser, assistive technology or operating system.

Triple A

Making the intent of your audio clear

A text alternative can be provided by

Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About live audio with video and accessibility

Making live audio with video (multimedia) accessible can benefit people with movement, visual, hearing, cognitive or seizure-related disabilities.

Single A

Making the multimedia

Starting with 'shooting' with a camera or capturing video, make sure that:

Making the purpose of your multimedia clear

Because a multimedia file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the multimedia and:

Operating the multimedia in a webpage

People must be able to operate the multimedia by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the multimedia. Also

Double A

Making the multimedia

No specific requirements relating to pre-recorded multimedia production. Although if any text is included in the video, as screens or information added to precede the viewing of the multimedia, such as credits or advertisements

Making the purpose of your multimedia clear

Captions must be added to the audio in live multimedia to help people with hearing or cognitive impairments understand the content. They also help people understand content if the language of the captions is unfamiliar. Captions must be

  • Synchronised with the audio and video displaying information that applies to the timeline
  • Contain enough information to provide an alternative to the combined content of the video and audio
  • Operable by the user (if closed)

Captions can be

If the multimedia is clearly identified as a media equivalent to text content, captions are not required.

Operating the multimedia in a webpage

The controls to operate the multimedia should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so developers should keep the default 'focus' functionality of the browser, assistive technology or operating system.

Triple A

Making the multimedia
Making the purpose of your multimedia clear

Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About live video-only and accessibility

Live audio is any image information captured from a real-world event and transmitted without delay to a webpage. An example of live video may be a webcam of a nesting sea eagle.

Single A

Making the video

Starting with 'shooting' live action with a camera, make sure that

Making the purpose of your video clear to everyone

Because a video-only file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the video, or a descriptive label of the video and:

Operating the video in a webpage

People must be able to operate the video by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the video. Also,

Double A

Making the video

No specific requirements relating to live video production. Although if any images of text, as screens or information added to precede the viewing of the video, such as credits or advertisements

Operating the video in a webpage

The controls to operate the video should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so

Triple A

Making the video

Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About pre-recorded audio-only and accessibility

Making pre-recorded audio accessible can benefit people with hearing or cognitive disabilities, or for whom English is their second language.

Single A

Making the purpose of your audio file clear

There needs to be an alternative representation of audio-only content, unless the audio file is a media alternative to text and clearly labelled as such.

Because an audio file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the audio, or a descriptive label of the audio and:

Operating the audio in a webpage

People must be able to operate the audio by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the audio including pausing and restarting.

Don't enable autoplay, because the audio file will 'speak' over the top of the screen reader and sound confusing, but if sound is played automatically, the

Also,

Double A

Operating the audio in a webpage

The controls to operate the audio should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so

Triple A

Making the audio file

The foreground audio, for example, speech, must be 20 decibels louder that any background noise. This can be achieved during recording or by mixing the audio file to maximise the audibility of foreground sound

Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About pre-recorded audio with video and accessibility

Making pre-recorded audio with video (multimedia) accessible can benefit people with movement, visual, hearing, cognitive or seizure-related disabilities. Accessible video can also benefit people using certain technologies, which might not support video. For example, some mobile devices have limited FLASH support.

Single A

Making the multimedia

Starting with 'shooting' with a camera or capturing video via a software package such as Captivate, or creating an animation, make sure that:

Making the purpose of your multimedia clear

Because a video-only file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the video, or a descriptive label of the video and:

Captions must be provided for all pre-recorded audio in multimedia to help people with hearing or cognitive impairments understand the content. They also help people understand content if the language of the captions is unfamiliar. Captions must be

  • Synchronised with the audio and video displaying information that applies to the timeline
  • Contain enough information to provide an alternative to the combined content of the video and audio
  • Operable by the user (if closed)

Captions can be

If the multimedia is clearly identified as a media equivalent to text content, captions are not required.

Specific techniques
Operating the multimedia in a webpage

People must be able to operate the multimedia by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the multimedia

Also,

Double A

Making the multimedia

No specific requirements relating to pre-recorded multimedia production. Although if any text is included in the video, as screens or information added to precede the viewing of the multimedia, such as credits or advertisements

Operating the multimedia in a webpage

The controls to operate the multimedia should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so developers should keep the default 'focus' functionality of the browser, assistive technology or operating system.

Triple A

Making the multimedia
Making the purpose of your multimedia clear

Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About pre-recorded video-only and accessibility

Video or animation can be a stand-alone file, with or without audio or user interaction. Making pre-recorded video accessible can benefit people with visual, cognitive or seizure-related disabilities. Accessible video can also benefit people using certain technologies, which might not support video. For example, some mobile devices have limited FLASH support.

Single A

Making the video

Starting with 'shooting' with a camera or capturing video via a software package such as Captivate, or creating an animation, make sure that:

Making the purpose of your video clear

An alternative to video can be a document that describes the intent and purpose of the video, or an audio file that describes the video immediately before or after the video.

Because a video-only file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the video, or a descriptive label of the video and:

Specific techniques
Operating the video in a webpage

People must be able to operate the video by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the video

Also,

Double A

Making the video

No specific requirements relating to pre-recorded video production. Although if any text is included in the video, as screens or information added to precede the viewing of the video, such as credits or advertisements

Operating the video in a webpage

The controls to operate the video should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so

Triple A

Making the video
Making the purpose of your video clear

Tell the same 'story' in the video in a separate document.

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Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About live audio-only and accessibility

Live audio is any sound captured from a real-world event and transmitted without delay to a webpage. There may be a short delay to allow some censoring, but not enough to allow for significant editing. Making live audio accessible will benefit people who have a hearing disability.

Single A

Making the intent of your audio clear

Because an audio file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the audio, or a descriptive label of the audio and:

Operating the audio in a webpage

People must be able to operate the audio by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the audio including pausing and restarting, and must not trap the keyboard.

Don't enable autoplay, because the audio file will 'speak' over the top of the screen reader and sound confusing, but if sound is played automatically, the

Also,

Double A

Making the intent of your audio clear

Captions should be provided for live audio content, either open (always visible), or closed captions.

Operating the audio in a webpage

The controls to operate the audio should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so developers should keep the default 'focus' functionality of the browser, assistive technology or operating system.

Triple A

Making the intent of your audio clear

A text alternative can be provided by

Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About live audio with video and accessibility

Making live audio with video (multimedia) accessible can benefit people with movement, visual, hearing, cognitive or seizure-related disabilities.

Single A

Making the multimedia

Starting with 'shooting' with a camera or capturing video, make sure that:

Making the purpose of your multimedia clear

Because a multimedia file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the multimedia and:

Operating the multimedia in a webpage

People must be able to operate the multimedia by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the multimedia. Also

Double A

Making the multimedia

No specific requirements relating to pre-recorded multimedia production. Although if any text is included in the video, as screens or information added to precede the viewing of the multimedia, such as credits or advertisements

Making the purpose of your multimedia clear

Captions must be added to the audio in live multimedia to help people with hearing or cognitive impairments understand the content. They also help people understand content if the language of the captions is unfamiliar. Captions must be

  • Synchronised with the audio and video displaying information that applies to the timeline
  • Contain enough information to provide an alternative to the combined content of the video and audio
  • Operable by the user (if closed)

Captions can be

If the multimedia is clearly identified as a media equivalent to text content, captions are not required.

Operating the multimedia in a webpage

The controls to operate the multimedia should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so developers should keep the default 'focus' functionality of the browser, assistive technology or operating system.

Triple A

Making the multimedia
Making the purpose of your multimedia clear

Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About live video-only and accessibility

Live audio is any image information captured from a real-world event and transmitted without delay to a webpage. An example of live video may be a webcam of a nesting sea eagle.

Single A

Making the video

Starting with 'shooting' live action with a camera, make sure that

Making the purpose of your video clear to everyone

Because a video-only file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the video, or a descriptive label of the video and:

Operating the video in a webpage

People must be able to operate the video by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the video. Also,

Double A

Making the video

No specific requirements relating to live video production. Although if any images of text, as screens or information added to precede the viewing of the video, such as credits or advertisements

Operating the video in a webpage

The controls to operate the video should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so

Triple A

Making the video

Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About pre-recorded audio-only and accessibility

Making pre-recorded audio accessible can benefit people with hearing or cognitive disabilities, or for whom English is their second language.

Single A

Making the purpose of your audio file clear

There needs to be an alternative representation of audio-only content, unless the audio file is a media alternative to text and clearly labelled as such.

Because an audio file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the audio, or a descriptive label of the audio and:

Operating the audio in a webpage

People must be able to operate the audio by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the audio including pausing and restarting.

Don't enable autoplay, because the audio file will 'speak' over the top of the screen reader and sound confusing, but if sound is played automatically, the

Also,

Double A

Operating the audio in a webpage

The controls to operate the audio should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so

Triple A

Making the audio file

The foreground audio, for example, speech, must be 20 decibels louder that any background noise. This can be achieved during recording or by mixing the audio file to maximise the audibility of foreground sound

Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About pre-recorded audio with video and accessibility

Making pre-recorded audio with video (multimedia) accessible can benefit people with movement, visual, hearing, cognitive or seizure-related disabilities. Accessible video can also benefit people using certain technologies, which might not support video. For example, some mobile devices have limited FLASH support.

Single A

Making the multimedia

Starting with 'shooting' with a camera or capturing video via a software package such as Captivate, or creating an animation, make sure that:

Making the purpose of your multimedia clear

Because a video-only file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the video, or a descriptive label of the video and:

Captions must be provided for all pre-recorded audio in multimedia to help people with hearing or cognitive impairments understand the content. They also help people understand content if the language of the captions is unfamiliar. Captions must be

  • Synchronised with the audio and video displaying information that applies to the timeline
  • Contain enough information to provide an alternative to the combined content of the video and audio
  • Operable by the user (if closed)

Captions can be

If the multimedia is clearly identified as a media equivalent to text content, captions are not required.

Specific techniques
Operating the multimedia in a webpage

People must be able to operate the multimedia by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the multimedia

Also,

Double A

Making the multimedia

No specific requirements relating to pre-recorded multimedia production. Although if any text is included in the video, as screens or information added to precede the viewing of the multimedia, such as credits or advertisements

Operating the multimedia in a webpage

The controls to operate the multimedia should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so developers should keep the default 'focus' functionality of the browser, assistive technology or operating system.

Triple A

Making the multimedia
Making the purpose of your multimedia clear

Meeting WCAG 2.0

A To claim Single A conformance, all of your pages and documents must meet all Single A requirements for all content

A A To claim Double A, all of your pages and documents must meet all Single A and all Double A requirements

A A A To claim Triple A, all of your pages and documents must meet all Single A, Double A and Triple A requirements

About pre-recorded video-only and accessibility

Video or animation can be a stand-alone file, with or without audio or user interaction. Making pre-recorded video accessible can benefit people with visual, cognitive or seizure-related disabilities. Accessible video can also benefit people using certain technologies, which might not support video. For example, some mobile devices have limited FLASH support.

Single A

Making the video

Starting with 'shooting' with a camera or capturing video via a software package such as Captivate, or creating an animation, make sure that:

Making the purpose of your video clear

An alternative to video can be a document that describes the intent and purpose of the video, or an audio file that describes the video immediately before or after the video.

Because a video-only file is not text, it cannot be 'read' by a screen reader. Therefore, it must have a text alternative that serves the same purpose. This alternative must also be identified so people know it is non-text content. This alternative can be

Or, a brief description of the video, or a descriptive label of the video and:

Specific techniques
Operating the video in a webpage

People must be able to operate the video by any input device. Therefore, just providing functionality for the mouse is not enough, although the mouse should be able to access any content on the page. The keyboard must be able to operate the all functionality of the video

Also,

Double A

Making the video

No specific requirements relating to pre-recorded video production. Although if any text is included in the video, as screens or information added to precede the viewing of the video, such as credits or advertisements

Operating the video in a webpage

The controls to operate the video should be accessible with a keyboard, and should be visible (highlighted) when they receive focus. Therefore it is best to keep it simple, so

Triple A

Making the video
Making the purpose of your video clear

Tell the same 'story' in the video in a separate document.