Visual information identified

foundational

Normative Text

Visual information needed to understand the media is described in the transcript and audio description.

This includes actions, charts or informative visuals, scene changes, and on-screen text,

Tests

This section is non-normative.

Meaningful visual information in transcripts and audio descriptions

Procedure

For each transcript:

Check that the transcript includes a description of any visual information needed to understand the content of the audio or video.
Check that the audio description includes a description of any visual information needed to understand the content of the audio or video.

Expected results

#1 and #2 are true.

Tests

This content needs to be written.

Key Terms

accessibility support set: group of user agents and assistive technologies you test with

The AGWG is considering defining a default set of user agents and assistive technologies that they use when validating guidelines.
Accessibility support sets may vary based on language, region, or situation.
If you are not using the default accessibility set, the conformance report should indicate what set is being used.
accessibility supported: available and working in the user agents and assistive technology in the accessibility support set

The working group intended to include a default accessibility support set. See Default accessibility support set #277.
audio description: narration added to the soundtrack to describe important visual details that cannot be understood from the main soundtrack alone

For audiovisual media, audio description provides information about actions, characters, scene changes, on-screen text, and other visual content.
Audio description is also sometimes called “video description”, “described video”, “visual description”, or “descriptive narration”.
In standard audio description, narration is added during existing pauses in dialogue. See also extended audio description.
If all important visual information is already provided in the main audio track, no additional audio description track is necessary.
conformance: satisfying all the requirements of the guidelines

Conformance is an important part of following the guidelines even when not making a formal Conformance Claim
See the Conformance section for more information.
content: information, sensory experience and interactions conveyed
extended audio description: audio description that is added to audiovisual media by pausing the video to allow for additional time to fit in the audio description

This technique is only used when the sense of the video would be lost without the additional audio description and the pauses between dialogue or narration are too short.
human language: language that is spoken, written, or signed (through visual or tactile means) to communicate with humans

See also sign language.
informative: content provided for information purposes and not required for conformance. Also referred to as non-normative
programmatically determinable: meaning of the content and all its important attributes can be determined by software functionality that is accessibility supported
sign language: a language using combinations of movements of the hands and arms, facial expressions, or body positions to convey meaning
text: sequence of characters that can be programmatically determined, where the sequence is expressing something in human language
transcript: a text equivalent of the source material