RE: Do we need a plain video transcript if we have an interactive one?

It depends on what level of accessibility you are aiming for. If you are aiming for WCAG 2.1 level A, then a transcript will meet part of the requirements for synchronised media as long as it contains all important visual information as well as the dialog.

However, this is not sufficient to meet level AA unless the video is of a single talking head with nothing important in the visual content. If that exception does not apply, you will need an audio description to meet level AA for synchronised media.

If you have audio-only or video-only content, then the transcript (including important audible or visual information as appropriate) is sufficient to meet level A. There is no additional requirement at level AA.

The interactive transcript may be adequate, but it depends how it is implemented. Also, it would need to contain all the important audible or visual information as well as the dialog.

Steve Green
Managing Director
Test Partners Ltd


From: Louise Lister <Louise.Lister@iop.org>
Sent: 17 June 2021 09:58
To: w3c-wai-ig@w3.org
Subject: Do we need a plain video transcript if we have an interactive one?


Hello all,

I hope you are a having a good week.

We are about to start adding transcripts to our embedded videos on our website (hooray), and I had a little question.

For now, we are looking to add a plain text transcript, but if at some point we had the ability to include an interactive transcript, would that then cover the transcript requirement from an accessibility requirement, and we could dispense with the plain text transcript?

I can see the benefits of both types, and whilst I love the interactive transcripts that TEDx use (fab talk: https://www.ted.com/talks/chieko_asakawa_how_new_technology_helps_blind_people_explore_the_world/transcript), I can only assume they’re using a specific software platform which wouldn’t be an option for us.

With kind regards
Louise

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