W3C

Timed Text Working Group Teleconference

17 July 2025

Attendees

Present
Andreas, Atsushi, Cyril, Gary, Nigel, Pierre
Regrets
Chris_Needham
Chair
Gary, Nigel
Scribe
nigel

Meeting minutes

This meeting

Nigel: Today we have:
… DAPT, IMSC 1.3, TPAC 2025 and Interop 2025 WebVTT goals
… And Atsushi added some specifics to discuss with IMSC 1.3
… Anything else for the agenda?

nothing

DAPT

Nigel: Good status update today.
… All the open Pull Requests have been closed
… Similarly the tests now all match the spec
… And the Implementation Report has links to all the tests as well, and
… has been updated to match the latest version of the spec,
… which has fewer extension features as a result of those recent pull requests.
… My proposal is that we publish a new CR Snapshot.

Publish a CR Snapshot

PROPOSAL: Publish a CR Snapshot of DAPT based on the current CR Draft

<Cyril> +1

<atai> +1

Nigel: Anyone in favour or against?

<gkatsev> +1

<nigel> +1

Nigel: That's 4 in favour, 0 against. Decision review period will be 2 weeks,

<atsushi> +1

Nigel: we can confirm it than.
… 5 in favour!
… Any more on DAPT?

Cyril: Nothing to add

IMSC 1.3

Nigel: There are several subtopics today.

PR Preview

Nigel: I don't think we have had any PRs opened since we hopefully fixed it, so can't
… show if the fix worked yet.
… I might open one just for testing.

Atsushi: I opened a PR but from my fork so maybe not a useful test

Namespace documents

<atsushi> w3c/ns#5

copied namespace documents from imsc#589 ns#5

Nigel: I approved this, which was opened 3 weeks ago.
… What do we need to do to make it happen?

Atsushi: There's still no formal way to handle this repo as far as I understand
… so I will talk with Philippe maybe later this month or early next month.

Pierre: I think we might need to retouch them for IMSC 1.3 so I wouldn't agonise too much about it now.
… When we get closer to Rec for IMSC 1.3 we will really need to insist,
… but no need to waste too much energy on it now.

Atsushi: To explain the current position, this repo is not automatically deployed to the
… w3.org/ns/ site so even if this is approved here I need to manually push the files to CVS and
… the website to complete it. There's no formal procedure.
… Few specifications have touch the namespaces recently.

FPWD Publication

Nigel: What's the status of this?

<atsushi> https://www.w3.org/TR/2025/WD-ttml-imsc1.3-20250722/

Atsushi: I've installed the material to w3.org/tr to be published next Tuesday
… I believe there should be no issue so it should be published on 22nd July.

Nigel: Thank you.
… Pierre and I had an action associated with this to prepare and send a notice out to interested
… parties, which has been drafted.

Pierre: We should send that as soon as possible.
… We've already warned people for the Wide Review.
… We should also begin the Horizontal Review process as soon as possible.
… Who will write the explainer, I can do it if someone can give me a template?

Atsushi: We can probably copy from IMSC 1.2 when we went through the same process.
… Most of the changes are unrelated to horizontal review areas, except for characters, which should be fine.
… We will modify it from last time just to explain the changes, so it isn't so difficult.

<atsushi> https://w3c.github.io/spec-releases/milestones/?fpwd=2025-07-22

Atsushi: There is still a 90 day period and then a 60 day period before Rec so there should be some
… room to get this done.

Nigel: Still, we have to initiate the process, as Pierre said.
… I'm happy to find the links to how we do that, and share it off line

How to get horizontal review

TAG How to write an Explainer

Pierre: Do you want to do the wide review and I can start taking on the horizontal review?

Nigel: Yes, can do.

Pierre: The horizontal review should be straightforward because the delta is small.

Nigel: I think we should mention for the accessibility review the issues that no longer apply
… from the previous review, because of the removal of Image Profile.

Pierre: I can see our IMSC-HRM horizontal review request but I don't see them for IMSC 1.2

Nigel: Maybe that predated the current system of issues and tracking labels.
… It was quite a while ago.

Pierre: It was 2020.

IMSC 1.2 History

Atsushi: It was a Rec in 2020, but in that era the system for HR was under development

Pierre: I found it. It was an email from Nigel on October 16 2019

<pal> "Request a11y review of IMSC 1.2"

<atsushi> https://lists.w3.org/Archives/Public/public-tt/2019Oct/0037.html

<pal> https://lists.w3.org/Archives/Public/public-tt/2019Oct/0041.html

<atsushi> https://lists.w3.org/Archives/Public/public-tt/2019Oct/0040.html

Pierre: I think what I will do is create a template text that explains how IMSC 1.3
… is a minimal change to 1.2, send it to the reflector, which should have no surprises,
… and then I'll submit the FPWD for HR.
… Unless someone else wants to do it - happy for someone else to do it.

Atsushi: After that the self-review questionnaire has been developed and we need to
… attach our self-review result to the request.

Pierre: Sure

<atsushi> https://www.w3.org/guide/documentreview/#how-to-get-horizontal-review

Atsushi: There is a not so short list of items in the questionnaire!

Pierre: By the way the questionnaire link is broken

I just opened this meta issue w3c/imsc#608

Nigel: This has a broken link to the accessibility questionnaire too
… Atsushi, will you follow up on the broken accessibility questionnaire link?

Pierre: I think I found it at https://w3c.github.io/fast/checklist.html

Atsushi: I want to believe that is correct

Nigel: I think I've seen that before as well

Gary: The broken URL does have "FAST" in it, it just has /apa/fast so maybe they moved the repo
… and forgot to update the links.

Pierre: What is the policy when you do a minor update to a Rec, do you have to do the whole questionnaire again?

Atsushi: Usually we use the previous result, but this time we don't have a previous one
… so I don't have an exact answer for that.

Pierre: Okay. I'll just proceed.

Wide Review request draft text

Pierre: I'll proceed quickly with the HR

Nigel: And I will also send the WR comms

Gary: For the checklist, it might be that since it is an update, we could just ask APA if
… we can proceed since it's an update release, without completing the full checklist.

Pierre: How would you go about that?

Gary: Probably opening an issue - in the Meta Issue there's a link to the a11y request repo

Pierre: I'm recalling that we have a WCAG consideration section that we can reference in the spec.
… We're not designing a UI, so I remember we had a long discussion and a lot of the requirements
… simply don't apply. I will start there.

Gary: In the check list a lot of these are "If the technology provides audio..." which we can skip.

Pierre: Is the check meant to indicate that you've read it or that it applies?

Gary: I think you check the item if it applies.
… Based on my minimal review.

Pierre: I will try to do this.

Nigel: Ping me if you have any questions

Pierre: Thanks, this is super helpful, glad we went through that.

IMSC 1.3 streamlined publication

Atsushi: Do we want to set up streamlined publication?

Nigel: Yes, that's our default unless anyone objects?

Atsushi: Any objections?

Nigel: You can go ahead and do it

Atsushi: Will do.

Nigel: The other bullets you added to the comment on this meeting's issue - do we need
… to discuss anything, or can you explain it offline?

Atsushi: Streamlined publication has two items - one to publish to /TR and the other to the
… gh-pages branch.
… For IMSC repo we have multiple specs so I don't think we can feed gh-pages from another branch
… so I would keep the main branch as the Editor's Draft and configure the streamlined publication
… to publish the ED to github.io and the latest WD to /TR. They should be the same content
… but with different document status.

Nigel: OK, that makes sense.

Atsushi: To be honest we don't really need the ED.
… If everything is fine I will raise a PR to configure everything.

Pierre: Yes please

Nigel: Yes
… Thank you for that.

Interop 2025 WebVTT goals

Gary: We'll need to skip this since Dana hasn't joined

TPAC 2025 planning

Nigel: Registration is open

Gary: Opened today I think

Published schedule

Nigel: The published schedule has a link to registration at the top, too
… Early bird rate of USD370 until 23rd August

Meeting close

Nigel: We meet in 2 weeks, on 31st July
… I can't make the 14th August

Gary: I am unlikely to be around either, and I can't make the 31st.

Nigel: So we're likely to cancel the 14th August call, to be confirmed next time.
… Thank you everyone, see you in a couple of weeks. [adjourns meeting]

Minutes manually created (not a transcript), formatted by scribe.perl version 244 (Thu Feb 27 01:23:09 2025 UTC).