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RE: Videos - do we need both captions and transcripts?

From: John Foliot <john@foliot.ca>
Date: Fri, 3 Feb 2017 11:07:37 -0600
To: "'Gregg C Vanderheiden'" <greggvan@umd.edu>, "'Nimisha Joshi'" <nimisha.joshi@northwestern.edu>
Cc: "'Janina Sajka'" <janina@rednote.net>, "'IG - WAI Interest Group List list'" <w3c-wai-ig@w3.org>
Message-ID: <003001d27e40$071d67a0$155836e0$@ca>
Hi all,

 

Related to Nimisha's question/comment:

> and captions are for synchronized

 

Both captions and video descriptions are synchronized to the "Master" timeline of the video: their utility is based on this synchronization. Transcripts (Gregg called them scripts, but I am unsure what his differentiation is, however the *actual* WCAG definition is for alternative for time-based media - https://www.w3.org/TR/WCAG20/#alt-time-based-mediadef) traditionally are not synced to the video resource, but (per the MAUR) should instead take advantage of semantic structure (good headings, inter-document navigation, etc.)

 

To be WCAG 2.0 AA compliant (and now, Section 508 compliant) you MUST provide both Captions and Audio Descriptions, whereas Transcripts is currently a AAA requirement (1.2.8 Media Alternative). However, by my observation and experience many organizations interpret SC 1.2.3 (Audio Description or Media Alternative (Prerecorded)) as saying that *IF* you provide the Transcript, that it meets the "Media Alternative" portion of that SC. This is due in part to the fact that a) WCAG 2.0 calls for "audio" descriptions (and does not contemplate text-based descriptions), and b) creating audio descriptions is rather burdensome and expensive today (even though it remains the preferred solution for the primary constituent group: non-sighted users).

So… to be "fully inclusive" you should have the following (I am indicating the Primary constituent group, but caveat that it impacts other users as well):

·        Captions [time-synced]: Deaf/HoH, Cognitive (includes non-native language speakers as well)

·        Descriptions [time-synced]: Blind

·        Transcripts (Scripts) [NOT time-synced]: Deaf-Blind

 

I'll also second Janina on referencing the MAUR for more background and explanation of these user-requirements (above and beyond what WCAG 2.0 provides).

 

HTH

 

JF

 

 

From: Gregg C Vanderheiden [mailto:greggvan@umd.edu] 
Sent: Thursday, February 2, 2017 4:16 PM
To: Nimisha Joshi
Cc: Janina Sajka; IG - WAI Interest Group List list
Subject: Re: Videos - do we need both captions and transcripts?

 

actually to support everyone - you need scripts - not just transcripts.

 

transcripts of the audio mixed with full descriptions of the video.  

 

Very hard to do

 

Gregg C Vanderheiden

greggvan@umd.edu

 

 

 

On Feb 2, 2017, at 10:39 PM, Nimisha Joshi <nimisha.joshi@northwestern.edu> wrote:

 

Hi Janina,

 

What you said about the use of transcripts for speed reading makes sense and I don’t think I need to see the meeting minutes.  

 

Thanks for a quick response and I appreciate your advice.

 

Best,

Nimisha

 

From: Janina Sajka < <mailto:janina@rednote.net> janina@rednote.net>
Date: Thursday, February 2, 2017 at 3:33 PM
To: Nimisha Joshi < <mailto:nimisha.joshi@northwestern.edu> nimisha.joshi@northwestern.edu>
Cc: " <mailto:w3c-wai-ig@w3.org> w3c-wai-ig@w3.org" < <mailto:w3c-wai-ig@w3.org> w3c-wai-ig@w3.org>
Subject: Re: Videos - do we need both captions and transcripts?

 

In order to support as many users as possible, yes.

 

You might also note that transcripts are sometimes referenced by persons

without disabilities who want to speed read through content--or to skim

the content. This use case came up during our discussions in the HTML

Working Group prior to the release of HTML 5.0. Let me know if you need

a reference to those minutes, and I'll dig them up for you. This use

case isn't noted in the Media Accessibility User Requirements (MAUR)

note simply because it's not an accessibility use case in the

traditional sense.

 

Janina

 

Nimisha Joshi writes:

Going by this, we DO need transcripts for all audio video content, right?

Thanks,

Nimisha

From: Janina Sajka < <mailto:janina@rednote.net> janina@rednote.net>

Date: Thursday, February 2, 2017 at 2:41 PM

To: Nimisha Joshi < <mailto:nimisha.joshi@northwestern.edu> nimisha.joshi@northwestern.edu>

Cc: " <mailto:w3c-wai-ig@w3.org> w3c-wai-ig@w3.org" < <mailto:w3c-wai-ig@w3.org> w3c-wai-ig@w3.org>

Subject: Re: Videos - do we need both captions and transcripts?

It's generally expected that people requiring captions aren't hearing

audio content, but are seing visual content.

Therefore, transcript is specified to support those who neither see nor

hear:

 <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.w3.org_TR_media-2Daccessibility-2Dreqs_-23transcripts&d=CwIBAw&c=yHlS04HhBraes5BQ9ueu5zKhE7rtNXt_d012z2PA6ws&r=8bgih609kFGNd3KTkZvS4SD8-_hY6QELODIGc63wIuE&m=uPDIur_EoYK7Iw8mT-FYh7DSzJhX4R9KHvIkQZdqkho&s=wBzST77c7L3EZGQmvUrI3IPpNEDHSEHVHBWou1ygaZc&e=> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.w3.org_TR_media-2Daccessibility-2Dreqs_-23transcripts&d=CwIBAw&c=yHlS04HhBraes5BQ9ueu5zKhE7rtNXt_d012z2PA6ws&r=8bgih609kFGNd3KTkZvS4SD8-_hY6QELODIGc63wIuE&m=uPDIur_EoYK7Iw8mT-FYh7DSzJhX4R9KHvIkQZdqkho&s=wBzST77c7L3EZGQmvUrI3IPpNEDHSEHVHBWou1ygaZc&e=

Nimisha Joshi writes:

Hello All,

I have a super elementary question, what is the difference between prerecorded and synchronized video?  From what I can gather, it seems there is a level of interaction with synchronized video, like online tutorials or eLearning. Am I close?

Transcript are for prerecorded (according to this Section 508 checklist item 2.2< <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.hhs.gov_web_section-2D508_making-2Dfiles-2Daccessible_checklist_html_index.html-3Flanguage-3Des&d=CwIBAw&c=yHlS04HhBraes5BQ9ueu5zKhE7rtNXt_d012z2PA6ws&r=8bgih609kFGNd3KTkZvS4SD8-_hY6QELODIGc63wIuE&m=uPDIur_EoYK7Iw8mT-FYh7DSzJhX4R9KHvIkQZdqkho&s=c8imw3CZmw7WrZWTSwzLD855OszQZMMg0s5Q7PGxQNw&e=%3e> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.hhs.gov_web_section-2D508_making-2Dfiles-2Daccessible_checklist_html_index.html-3Flanguage-3Des&d=CwIBAw&c=yHlS04HhBraes5BQ9ueu5zKhE7rtNXt_d012z2PA6ws&r=8bgih609kFGNd3KTkZvS4SD8-_hY6QELODIGc63wIuE&m=uPDIur_EoYK7Iw8mT-FYh7DSzJhX4R9KHvIkQZdqkho&s=c8imw3CZmw7WrZWTSwzLD855OszQZMMg0s5Q7PGxQNw&e=>) and captions are for synchronized (checklist item 2.3).

If this is irrelevant and you advise using captions for all video content (except for a silent movie, of course) or if we need both captions and transcripts?

Thank you again for all your advice.

Thanks,

NJ

--

Janina Sajka,   Phone: +1.443.300.2200

                                     sip: <mailto:janina@asterisk.rednote.net> janina@asterisk.rednote.net< <mailto:janina@asterisk.rednote.net> mailto:janina@asterisk.rednote.net>

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Janina Sajka,   Phone: +1.443.300.2200

                                    sip: <mailto:janina@asterisk.rednote.net> janina@asterisk.rednote.net

                        Email:   <mailto:janina@rednote.net> janina@rednote.net

 

Linux Foundation Fellow

Executive Chair, Accessibility Workgroup:     <https://urldefense.proofpoint.com/v2/url?u=http-3A__a11y.org&d=CwIBAw&c=yHlS04HhBraes5BQ9ueu5zKhE7rtNXt_d012z2PA6ws&r=8bgih609kFGNd3KTkZvS4SD8-_hY6QELODIGc63wIuE&m=LwTpSuEGc68WKXX5ZGmzHSdCTI5NUeagaXEqT_Mdi-g&s=s5hs-EZNHPcz1FLq1gOrIhAJN7lzUHClnlth89sxT0c&e=> https://urldefense.proofpoint.com/v2/url?u=http-3A__a11y.org&d=CwIBAw&c=yHlS04HhBraes5BQ9ueu5zKhE7rtNXt_d012z2PA6ws&r=8bgih609kFGNd3KTkZvS4SD8-_hY6QELODIGc63wIuE&m=LwTpSuEGc68WKXX5ZGmzHSdCTI5NUeagaXEqT_Mdi-g&s=s5hs-EZNHPcz1FLq1gOrIhAJN7lzUHClnlth89sxT0c&e=

 

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Chair, Accessible Platform Architectures         <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.w3.org_wai_apa&d=CwIBAw&c=yHlS04HhBraes5BQ9ueu5zKhE7rtNXt_d012z2PA6ws&r=8bgih609kFGNd3KTkZvS4SD8-_hY6QELODIGc63wIuE&m=LwTpSuEGc68WKXX5ZGmzHSdCTI5NUeagaXEqT_Mdi-g&s=e5DZX8Ccy1T3klqe-TwGQ29gEEIRda_6kCW-LWzFdAo&e=> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.w3.org_wai_apa&d=CwIBAw&c=yHlS04HhBraes5BQ9ueu5zKhE7rtNXt_d012z2PA6ws&r=8bgih609kFGNd3KTkZvS4SD8-_hY6QELODIGc63wIuE&m=LwTpSuEGc68WKXX5ZGmzHSdCTI5NUeagaXEqT_Mdi-g&s=e5DZX8Ccy1T3klqe-TwGQ29gEEIRda_6kCW-LWzFdAo&e=

 

 

 
Received on Friday, 3 February 2017 17:09:29 UTC

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