- From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
- Date: Wed, 22 Jun 2011 23:05:47 +1000
- To: Mark Watson <watsonm@netflix.com>
- Cc: David Singer <singer@apple.com>, Bob Lund <B.Lund@cablelabs.com>, HTMLAccessibility Task Force <public-html-a11y@w3.org>
On Wed, Jun 22, 2011 at 4:55 PM, Mark Watson <watsonm@netflix.com> wrote: > >> On Jun 22, 2011, at 8:31 AM, Silvia Pfeiffer wrote: >> >> I think you are over-estimating what is done when an audio description or a >> commentary is produced. I've never seen such a production that mixes more >> than exactly two sound sources: the main audio and the spoken overlay. >> Anything else would also infringe on the copyright of the original >> production, so is very unlikely to happen. > > You don't expect the authors of content to ever provide the descriptions > themselves ? Don't the BBC already do this for some of their content ? No, I think it's a different production process, completely separate from the main content. There may be an occasional exception, but in general, accessibility content such as captions and audio descriptions are produced after a piece of content is finished, not as part of the production. >> The kinds if goals that you mention for emphasizing individual aspects of >> the original mix are already addressed in the original mix. > > But that may change for the case of mixing with descriptions. > But anyway, whilst this argument about mixing is interesting, it's not the > main point. > There are clearly two ways in which descriptions could be delivered. We can > argue about the relative merits of these two ways, and the HTML a11y WG > could even make a recommendation about which is preferably. Well, it is stated in (DV-6) of our requirements document, http://www.w3.org/WAI/PF/HTML/wiki/Media_Accessibility_Requirements#Described_video , so our requirements already say that it is preferable. > But it seems way beyond our scope to say we are *so sure* about the > superiority of one approach that the other kind of descriptions can't even > be presented to the user in the same way as the "preferred" approach. > If a user asks "why don't the descriptions on this content get enabled > according to my preferences, when it works for this other piece of content", > it's not an acceptable answer to say "because the engineers in W3C decided > not to mark the first kind of descriptions as descritions". I had indeed made an allowance for this before even though I continue to believe it is the inferior approach and should not be the encouraged means. > There may also be many other reasons why people take the different > approaches to delivering descriptions. I think if someone goes to the > trouble of providing them at all then they should be presented to the user > that wants them in a consistent way, that's all. I can see the issue of browser default settings and shortcuts, though a publisher could get around this, too, with JS on their page. But anyway, I did mention "main+descriptions" could be a solution for legacy content. Cheers, Silvia.
Received on Wednesday, 22 June 2011 13:06:44 UTC