Sounds identified in transcripts

Core requirement

Sounds needed to understand the media are identified or described in transcripts.

This includes sound effects and other non-spoken audio content.

Applies when there is sound.

Except when the video is decorative.

Procedure

For all audio content:

Identify meaningful non-verbal audio (sounds).
Check that transcripts include a description of the meaningful non-verbal audio.

Expected results

audio: live or recorded sound signal
content: information, sensory experience and interactions conveyed
decorative: serving only an aesthetic purpose, providing no information, and having no functionality

Text is only purely decorative if the words can be rearranged or substituted without changing their purpose.

The cover page of a dictionary has random words in very light text in the background.
purely decorative: non-text content that serves only an aesthetic purpose, provides no information, and has no functionality, such that it can be ignored by assistive technology without any loss of meaning or context
transcript: a text equivalent of the source material