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Can WCAG add caption standards, so that captions are readable, usable and benefit the people they are intended to assist? #119

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JLS2024 opened this issue Oct 6, 2024 · 25 comments

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@JLS2024
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JLS2024 commented Oct 6, 2024

WCAG recommends captions, but fails to include standards. Captions need standards (https://janicelintz.com/wp-content/uploads/2015/05/multichannelviewpt-72913.pdf) to be readable, usable, and benefit the people they are intended to assist. Can w3c/wcag3 add captioning standards?

I recommend the standards that the Association of National Advertisers recommends(https://janicelintz.com/wp-content/uploads/2015/03/ana_closedcaption_whitepaper-f.pdf) These standards are the basis for the FCC standards (https://www.fcc.gov/sites/default/files/closed_captioning_on_television.pdf) and the NPS captioning standards (https://janicelintz.com/wp-content/uploads/2020/08/19-10-npsguidelines.pdf).

Janice S. Lintz
Hearing Loss Changemaker

@shawna-slh
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Perhaps appropriate resources can be added to Understanding [SC 1.2.2] Captions, Related Resources

@JLS2024
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JLS2024 commented Oct 6, 2024 via email

@shawna-slh
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The Related Resources section of Understanding [SC 1.2.2] Captions is the place to put links to such standards.

@JLS2024
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JLS2024 commented Oct 6, 2024 via email

@patrickhlauke
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WCAG is used/referenced beyond the US. It would be mighty strange to enshrine a specific standard from one country to be mandated worldwide.

@JLS2024
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JLS2024 commented Oct 6, 2024 via email

@JLS2024
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JLS2024 commented Oct 6, 2024 via email

@nschonni
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nschonni commented Oct 6, 2024

https://www.w3.org/TR/webvtt1/ is probably the spec you're talking about. To find a group, they're all listed on https://www.w3.org/groups/wg/

@JLS2024
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JLS2024 commented Oct 6, 2024 via email

@nschonni
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nschonni commented Oct 6, 2024

How can a group be started or another group tackle creating standards so the caption placement

All the information about how groups are formed, and what they address is in https://www.w3.org/policies/process/

@JLS2024
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JLS2024 commented Oct 6, 2024 via email

@detlevhfischer
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detlevhfischer commented Oct 7, 2024

@JLS2024 I understand your frustration. Since it is unlikely that a WCAG version 2.3 will be released (something which would allow adding new normative requirements), WCAG 3 may now be the best place to submit proposals for inclusion of captions characteristics

In there, you find

Caption control (Exploratory): The position and formatting of captions can be changed.

...but it will be some years still before WCAG 3 is likely to be released. For countries adopting the European Standard EN 301 549 (PDF), there exists already the requirement 7.1.4 Captions characteristics that lists a number of parameters that users should be able to change (not all of them offered in the different environments and players today).

@JLS2024
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JLS2024 commented Oct 7, 2024 via email

@mraccess77
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In the US The FCC also has some requirements worth considering for the display of captions.
§ 79.103 Closed caption decoder and display requirements for apparatus.
https://www.law.cornell.edu/cfr/text/47/79.103

@detlevhfischer
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Please let me know how the group plans to proceed.

@JLS2024 You are receiving individual answers here, from people who cannot speak for the group as a whole. Maybe it would be better to directly contact the chairs of AGWG [email protected] and ask them if a task force focused on hearing loss can be set up.

@JLS2024
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JLS2024 commented Oct 7, 2024 via email

@JLS2024
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JLS2024 commented Oct 7, 2024 via email

@iadawn
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iadawn commented Oct 7, 2024

@JLS2024 Thanks for raising the issue. The Accessibility Guidelines Working Group (AGWG) is responsible for the development of WCAG 3 and the maintenance of WCAG 2.

WCAG 3 is taking a slightly different approach to WCAG 2 with more of an emphasis on Outcomes and what can be done to best deliver against those outcomes to improve access to digital content for people with disabilities.

We are currently developing content for each of the Outcomes. This is conducted in sub-groups of the working group. We have not as yet started a sub-group on captions but it will certainly happen and the issue you have raise will be part of the considerations.

I will respond in a separate email with information on how to become more involved if that is something you are interested in doing.

Thanks

Kevin
AGWG Team Contact

@bruce-usab bruce-usab self-assigned this Oct 7, 2024
@bruce-usab
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Welcome Janice!
As you know, the FCC caption quality standards are tuned to U.S. broadcast television, but are readily applicable to about any video media. They are performance standards, and work well enough IMHO, but I am not convinced they can reasonably be converted into a mathematical algorithm.

@JLS2024
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JLS2024 commented Oct 7, 2024 via email

@JLS2024
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JLS2024 commented Oct 7, 2024 via email

@alastc
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alastc commented Oct 8, 2024

Looking ahead to when we work on the multimedia guidelines, I think it is very unlikely that we (the working group) would develop a new standard for captions, particularly when that work has already been done by other organisations.

A couple of other reasons include:

  • The (reliable) testability of a captioning standard is unlikely to be in line with the “requirement” level in WCAG 3.
  • One captioning standard may not work across the whole world. For example, some languages may not have a concept of capitalisation, and the best location on screen might vary between regions.

However, what we could do is include an assertion along the lines of: “We (the organisation making a claim) have followed the appropriate regional standard for captions”. That assertion could be required to reach a certain level of conformance with WCAG. So there would be a requirement for captions, then an assertion to tackle the quality of captions.

Our informative documents could also link to known (good) captioning standards from around the world.

@JLS2024
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JLS2024 commented Oct 8, 2024 via email

@alastc
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alastc commented Oct 8, 2024

A few points in response:

  • I didn't dismiss the idea, I thought it was unlikely that it is something the group would do.
  • Even as co-chair, we work on a consensus process so if the group consensus were to create captioning standards, we might be able to do that (in a new charter period).
  • Variables that would be important in that decision would be:
    • What is the current quality of the available standards.
    • How applicable are they across the world? (I'm not sure how they would work for internationalization, but it is a question that needs to be answered first.)
  • Questioning the testability of a requirement in no way undermines the importance. Testable does not correlate with important, unfortunately. We have many cognitive-related barriers that are important but very difficult to test.
  • If such a requirement were at the base level (like in WCAG 2), Netflix could be sued because one caption on one video goes over the face of a character. That's the nature of WCAG 2 style binary true/false statements, which (IMHO) is not how a captioning standard could or should work.
  • We will indeed have to look at similar standards in other areas, such as audio-description. We have over 180 requirements already, many of which cover large areas (like captions), there is no way one group can create standards for all of them.

A key point to understand is that WCAG 2 became popular and well-used because it provides a set of pass/fail statements. However, WCAG 3 is being created (in part) because we know that approach cannot cover all the important aspects as well as we would like. Whether captions are available is a true/false thing, whether they are any good is much harder to fit into a binary form. That is the same for a lot of the requirements we work on, across all disabilities.

@JLS2024
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JLS2024 commented Oct 9, 2024 via email

@w3c w3c locked and limited conversation to collaborators Oct 21, 2024
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