Changes

==== Auditive audio descriptions ====

* [http://www.w3.org/WAI/wcag-curric/sam20-0.htm auditive descriptions] are descriptions of all that is happening only visually in a video; this includes e.g. scenery, people & objects appearing/disappearing/movement, face expressions, weather

Discussion:

* (-) an auditive description of the visual scene is restrictive because the description is spoken and not directly accessible other than through speech recognition