Audio descriptions synchronized

foundational

Normative Text

Audio descriptions are synchronized with video content without overlapping dialogue and meaningful audio content.

Except when

Tests

This section is non-normative.

Procedure

For synchronized media with audio description:

Check that audio description is in sync with video content in synchronized media.
Check that audio description doesn’t overlap with dialogue and meaningful audio content.

Expected results

This content needs to be written.

audio: live or recorded sound signal
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.
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.
video: the technology of moving or sequenced pictures or images

Video can be made up of animated or photographic images, or both.