Test for WCAG technique G9: Creating captions for live synchronized media

[hannolans]

http://www.w3.org/TR/WCAG20-TECHS/G9.html
The objective of this technique is to allow users who cannot hear to be able to access real-time synchronized media broadcasts. It is more difficult to create accurate real-time captions because there is little time to correct mistakes or to listen a second time or consult someone to be sure the words are accurately reproduced. It is also harder to simplify or paraphrase information if it is flowing too quickly.

Real-time typing text entry techniques exist using stenographic and rapid typing technologies. Re-voicing speech-to-text (where a person listens to speech and then carefully re-voices it into a computer trained to their speech) is used today for telephone relay services and may be used in the future for captioning. Eventually speech-to-text with correction will be possible.

Applicablity

Live video with audio

Procedure

1. Check that a procedure and policy are in place to ensure that captions are delivered in real-time.

QUAIL

• This test should return a 'not Applicable' if no livestream situation is detected on the page, and a 'cantTell' if a livestream situation is detected. It won't return a pass or a fail as the detection of the captions iself are covered by other tests.
• As such this technique works as a precondition as the other techniques are testing if a caption is available.
• we need two different tests with detection mechanisms if a livestream is available.
  We have 'always on' livestreams and
  livestreams that are triggered and has a text announcement if the livestream is not available.
  Let's start with an always on livestream.

Always available livestreams

A test that we can detect the type of streaming technique. Some video formats are exclusively used for livestreams. We need example code for that.

Example pages

Occasional available livestreams

We need some text snippets for this.

Example pages

[hannolans]

Some links with livestreams:
http://www.tweedekamer.nl/
http://www.europarl.europa.eu/ep-live/en/plenary/
http://www.whitehouse.gov/live
http://www.aph.gov.au/News_and_Events/Watch_Parliament
http://www.parliamentlive.tv/Main/Home.aspx