Audio description failure technique #4390
Conversation
Change to informative content (a note) in normative content (definition): Added the word "important" to note 3 to match the wording of the definition (which reads "..to describe important visual details...").
Two changes to the first note in the informative Understanding document: - add "additional" to match the first change to the definition note. - swap out the word "provided" in preference for the synonym "conveyed" This change is made in the belief that is more accurate. For example, if a scene shows something blowing up, and there is the sound of an explosion that matches, it is more accurate to say the sound conveys the visual explosion than to say the sound "provides" the visual explosion.
Addresses #1768 Creates a failure technique to show the conditions under which a video fails 1.2.5 due to important visual information not being described in pauses in the dialogue
✅ Deploy Preview for wcag2 ready!
To edit notification comments on pull requests, go to your Netlify project configuration. |
I've removed "must" to address Scott's concern
Remove note styling and add in wording suggested in #3806
I think it may look better with the note. Trying to retain just for the pre-existing paragraph to see how that looks
techniques/failures/F113.html
Outdated
|
For each occurrence of synchronized time-based media: |
||
|
|
||
|
|
||
|
|
There was a problem hiding this comment.
Check that audio description is provided for any visual information necessary to understand the content which is not conveyed by audio in the synchronized media.
There was a problem hiding this comment.
This second check is there to make sure any available appropriate pauses are used.
The first check has already validated that the audio descriptions either cover all the material, or they don't.
Here, we're testing that all the pauses have been used for narration.
Together they give us the gates for the failure:
#1 passes= no failure
#1 fails and #2 passes=no failure
#1 fails, #2 fails=failure
There was a problem hiding this comment.
The original working is actually checking that all possibly useful pauses are used, which may not be appropriate.
There was a problem hiding this comment.
This failure test goes beyond the SC. The SC does not require that ALL important information be conveyed. Nor does it require that all gaps be used. There is a good reason for both
-
there are not enough gaps in the right places to describe all important information for many or most video. So it was not required or else we would have had to make it level AAA because it could not be applied to all (or even most) video. So the SC only requires that SOME but not ALL important info be provided
-
it does not require that all gaps be used because a gap that appears at a place where there is no important information cannot be used to describe somethig that happened a long time ago. Also - some gaps are too small to be used.
So a failure that implies or tests for all important information or all gaps to be used -- is not a valid failure since it is testing for things not in the SC. In addition it would be something that would fail the best attempts at audio description for many videos.
There was a problem hiding this comment.
i assume this was in response to my comment here #4390 (comment) rather than andrew's from 3 weeks ago...
also, you seem to be commenting on an outdated snippet that has already been changed/superseded. it might be worth going via https://github.com/w3c/wcag/pull/4390/files to check what the actual latest state of the PR is to avoid that...
…/w3c/wcag into AudioDescriptionFailureTechnique
There was a problem hiding this comment.
@mbgower your last commits seem to have somehow reverted F113 to an empty file?
This reverts commit a2213d6.
kfranqueiro
requested review from
kfranqueiro
and removed request for
kfranqueiro
kfranqueiro
dismissed
their stale review
Resolved issue with file by reverting the commit that emptied it
Update to respond to Patrick's feedback
Added terminal punctuation to each list item
Made it a series of "if not" statemtns
|
What if the third check was: And then the failure would be triggered when all three checks are false? |
Incorporated. |
Closes #3806
Closes #1768 (in combination with the other previously merged changes outlined in #1768 (comment))
Creates a failure technique to show the conditions under which a video fails 1.2.5 due to important visual information not being described in pauses in the dialogue
Preview