Re: Call for Consensus (CfC): Comment on DAPT

+1

On 16/11/23 08:00, Todd Libby wrote:
> +1
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> ---
> Best,
>
> Todd Libby
> Senior Accessibility Engineer
> W3C Invited Expert
> toddlibby@protonmail.com
> https://toddl.dev
>
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>
>
> On Wed, Nov 15, 2023 at 15:14, Janina Sajka <janina@rednote.net 
> <mailto:On Wed, Nov 15, 2023 at 15:14, Janina Sajka <<a href=>> wrote:
>> Colleagues:
>>
>> This is a Call for Consensus (CfC) to the Accessible Platform 
>> Architectures (APA) Working Group testing for agreement on a formal 
>> comment to the Timed Text Working Group regarding their Dubbing and 
>> Audio description Profiles of TTML2 (https://www.w3.org/TR/dapt/). 
>> APA's input was requested as part of our role in performing 
>> horizontal review of accessibility concerns in W3C specifications.
>>
>> APA's background discussion on this review can be seen in the APA's 
>> teleconference minutes at :
>>
>> https://www.w3.org/2023/11/15-apa-minutes.html#t07
>>
>> The Timed Text WG has thoughtfully provided a summary of their 
>> accessibility guidance both in the Introduction of their 
>> specification referenced above, but also at:
>>
>> https://github.com/w3c/dapt/wiki/Considerations-for-the-Accessibility-review
>>
>> Please note that we are seeking the change of emphasis suggested below
>> in a future Working Draft, not necessarily this current one. We see no
>> reason to block publication of the current WD. In fact we are very
>> appreciative of this well written specification and of its clear and
>> helpful examples.
>>
>> *** Draft Comment***
>>
>> APA appreciates the thorough support for accessibility concerns in the
>> DAPT Working Draft. We have only one comment. The document notes that:
>>
>> "The audio mixing can occur prior to distribution of the media, or in 
>> the client player. If the audio description script is delivered to 
>> the player, the text can be used to provide an alternative rendering, 
>> for example on a Braille display, or using the user's configured 
>> screen reader."
>>
>> APA appreciates the need to support audio mixing prior to 
>> distribution, but would prefer that this be left to the user agent 
>> whenever possible. We would like to encourage content creators to 
>> embed alternative media in .mp4 or .mkv type containers to facilitate 
>> greater flexibility of meeting individual user needs. Therefore we 
>> would request a simple indication of preference for mixing in the 
>> user agent. We would further generalize this preference across all 
>> forms of alternative media content.
>>
>> *** Action to Take ***
>>
>> This CfC is now open for objection, comment, as well as statements of 
>> support via email. Silence will be interpreted as support, though 
>> messages of support are certainly welcome.
>>
>> If you object to this proposed action, or have comments concerning 
>> this proposal, please respond by replying on list to this message no 
>> later than 23:59 (Midnight) Boston Time, Wednesday 22 November.
>>
>> NOTE: This Call for Consensus is being conducted in accordance with 
>> the APA Decision Policy published at: 
>> http://www.w3.org/WAI/APA/decision-policy
>>
>> -------------------------------------------------------------------------------
>>
>> Janina Sajka (she/her/hers)
>> Accessibility Consultant https://linkedin.com/in/jsajka
>>
>> The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
>> Co-Chair, Accessible Platform Architectures http://www.w3.org/wai/apa
>>
>> Linux Foundation Fellow
>> https://www.linuxfoundation.org/board-of-directors-2/
>>
>>