- From: Shawn Henry <shawn@w3.org>
- Date: Tue, 17 May 2022 18:11:54 -0500
- To: Greg Jellin <greg@gregjellin.com>, Peter Shikli <pshikli@access2online.com>
- Cc: Wai-Ig <w3c-wai-ig@w3.org>
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 23:11:59 UTC