- From: Greg Jellin <greg@gregjellin.com>
- Date: Tue, 17 May 2022 16:18:55 -0700
- To: Shawn Henry <shawn@w3.org>
- Cc: Wai-Ig <w3c-wai-ig@w3.org>
Fantastic resources, Shawn. Thanks. On 5/17/2022 4:11 PM, Shawn Henry wrote: > Hi, Greg, > > In many cases "integrated description" included in the main video is > the best solution. I hope that you find useful information for your > situation in the W3C WAI resource "Making Audio and Video Media > Accessible", particularly: > * https://www.w3.org/WAI/media/av/description/ > * https://www.w3.org/WAI/media/av/av-content/#integrate-description > > Hopefully that resource also clears up misunderstandings in this > e-mail thread about WCAG requirements at Level A, AA, AAA and meeting > people's accessibility needs and preferences. > > --- > > Indeed the WCAG information could be made more clear, and better cover > current technology and options. I encourage you to submit suggestions > to improve the wording in the Understanding document. (We can't change > the wording in WCAG itself.) It's best if you can submit a GitHub Pull > Request. Alternatively, you can use a form or send e-mail. > Instructions are here: > https://www.w3.org/WAI/standards-guidelines/wcag/commenting/ > > If you have suggestions for the "Making Audio and Video Media > Accessible" resource, you can use the e-mail or GitHub links near the > end of the page in the 'Help improve this page' box. > > Best, > ~Shawn > <http://www.w3.org/People/Shawn/> > > > On 17-May-22 4:46 PM, Greg Jellin wrote: >> Peter, >> >> I hear what you are saying, that using only existing pauses may >> provide an excuse to provide limited AD, if interpreted that way. >> >> But my main concern is whether the SC requires the AD, no matter how >> brief, to be included in the integrated (main) soundtrack or is it >> required to be a separate sound track. I know the answer to this (at >> least I think I do), but the language used in both the SC and the >> Understanding regarding the term Audio Description is ambiguous. >> >> This ambiguity creates a lot of confusion amongst A11y folks as well >> as our clients. I am currently defending a VPAT in which a potential >> client is making the claim that because a separate AD track is not >> provided that we are failing 1.2.5. >> >> Greg >> >> >> On 5/17/2022 2:08 PM, Peter Shikli wrote: >>> Greg, >>> >>> Indeed there is lots of confusion regarding that. The simplest way >>> to understand it is that WCAG 2.1 to a level AA rating requires only >>> that you fit the audio description in the pauses between dialog, >>> whereas a level AAA satisfies the requirement with a separate MP3 >>> audio file that accompanies the video. This latter is called an >>> extended audio description. We are big fans of producing such >>> extended audio descriptions compared to the minimalist version to >>> comply at the AA level. >>> >>> Among other things, many videos do not provide a time slice between >>> the dialog to adequately describe the scene. The level AA rating >>> says it's OK to shortchange the blind in this regard. It's also much >>> harder to embed such a AA audio description as a track on the few >>> video players that support it. I can think of more reasons, but this >>> is why we have produced a fully functional sound studio as part of >>> our accessibility services with trained voiceover artists. >>> >>> Extended audio descriptions are the right way to meet the needs of >>> the blind. >>> >>> Cheers, >>> Peter Shikli >>> Access2online Inc. >>> 29030 SW Town Center Loop East >>> Suite 202-187 >>> Wilsonville, OR 97070 >>> 503-570-6831 - pshikli@access2online.com >>> Cell: 949-677-3705 >>> FAX: 503-582-8337 >>> www.access2online.com <http://www.access2online.com> >>> Prison inmates helping the internet become accessible >>> >>> On Tue, May 17, 2022 at 1:35 PM Greg Jellin <greg@gregjellin.com> >>> wrote: >>> >>> Warning, it is a bit challenging to describe my concern so this >>> is a bit verbose. >>> >>> Success Criterion 1.2.5 Audio Description (Prerecorded) states, >>> "Audio description is provided for all prerecorded video content in >>> synchronized media." >>> >>> In the normative part of the SC there are no exceptions, thus my >>> interpretation is that an Audio Description is always required for >>> synchronized media. Where it gets tricky for me is the definition of >>> Audio Description. >>> >>> When reading the Understanding (non-normative) doc for 1.2.5 the >>> term Audio Description appears to me to be ambiguously defined. I >>> would argue that the term is being used in some parts of the >>> document to mean a separate audio track that augments the integrated >>> (main) audio of the synchronized media to describe visual details, >>> but in other parts to mean a description of visual details that may >>> be in the integrated audio OR a separate audio track. >>> >>> So which is is it? Is Audio Description defined describing in >>> audio the visual content as separate track? Or, is Audio Description >>> defined as describing in audio the visual content within the >>> integrated (main) audio OR as a separate track. >>> >>> This is important, because if WCAG defines Audio Description as >>> always being a separate track, then the SC (normative) requires a >>> separate track for all synchronized media. >>> >>> Some examples of ambiguous language: >>> >>> /In the Understanding doc (Note section below "Intent") the >>> following is stated, "For 1.2.3, 1.2.5, and 1.2.7, if all of the >>> information in the video track is already provided in the audio >>> track, no audio description is necessary."/ >>> >>> My interpretation of that language is that audio description is >>> a separate track, but is only necessary if the main audio track does >>> not sufficiently describe the visual content. The problem is that >>> this directly conflicts with the SC, "Audio description is provided >>> for ALL..." >>> >>> /In the Key Terms section audio description is defined as >>> "//narration added to the soundtrack to describe important visual >>> details that cannot be understood from the main soundtrack alone". >>> / >>> >>> Again, this implies that there is a 2nd (separate) soundtrack. >>> >>> My sense is that the term Audio Description is being used to >>> have two different meanings (ambiguous). In the SC statement it >>> means that the visual content must be described (either in the >>> integrated audio or a separate audio track) and in the Understanding >>> doc it means explicitly a separate audio track. >>> >>> Thoughts? >>> >>> Greg >>>
Received on Tuesday, 17 May 2022 23:19:13 UTC