+ summary text + wcag excerpts

content/captions.md

@@ -4,7 +4,7 @@ title_image: /content-images/wai-media-guide/cc.svg
 nav_title: "Captions/Subtitles"
 
 lang: en   # change "en" to lang code, here and 2 @@s below
-last_updated: 2020-11-24  # Change to date of translation YYYY-MM-DD (month in middle)
+last_updated: 2020-12-12  # Change to date of translation YYYY-MM-DD (month in middle)
 # translator: "..."
 # contributors: "..."
 
@@ -27,7 +27,7 @@ description: Helps you understand and create captions (also called “subtitles
 image: /content-images/wai-media-guide/social.png
 
 footer: >   # Translate words below, including "Date:" and "Editor:". (Do not update the date.)
-   <p><strong>Date:</strong> Updated 24 November 2020. CHANGELOG.</p>
+   <p><strong>Date:</strong> Updated 12 December 2020. CHANGELOG.</p>
    <p><strong>Editor:</strong> <a href="http://www.w3.org/People/Shawn">Shawn Lawton Henry</a>. ACKNOWLEDGEMENTS lists contributors and credits.</p>
    <p>Developed by the Education and Outreach Working Group (<a href="http://www.w3.org/WAI/EO/">EOWG</a>). Originally drafted as part of the <a href="https://www.w3.org/WAI/WCAGTA/">WCAG TA Project</a> funded by the <abbr title="United States">U.S.</abbr> Access Board. Revised as part of the <a href="https://www.w3.org/WAI/expand-access/">WAI Expanding Access project</a> funded by the Ford Foundation.</p>
 
@@ -37,7 +37,9 @@ footer: >   # Translate words below, including "Date:" and "Editor:". (Do not up
 {% include box.html type="start" title="Summary" class="" %}
 {:/}
 
-This page helps you understand and create captions (also called "subtitles").
+Captions (called "subtitles" in some areas) provide content to people who are Deaf and hard-of-hearing. Captions are a text version of the speech and non-speech audio information needed to understand the content. They are synchronized with the audio and usually shown in a media player when users turn them on.
+
+This page helps you understand and create captions and subtitles.
 
 {::nomarkdown}
 {% include box.html type="end" %}
@@ -166,6 +168,12 @@ Does the video have audio information that is needed to understand what the vide
 {% include box.html type="end" %}
 {:/}
 
+<br>
+
+**WCAG excerpts** with links to more information in "Understanding WCAG":
+* [A 1.2.2 Captions](https://www.w3.org/WAI/WCAG21/Understanding/captions-prerecorded.html) (Prerecorded): Captions are provided for all prerecorded audio content in synchronized media...
+* [AA 1.2.4 Captions](https://www.w3.org/WAI/WCAG21/Understanding/captions-live.html) (Live): Captions are provided for all live audio content in synchronized media. 
+
 ## Skills and Tools
 
 Creating captions requires typing up the audio ("transcribing") and formatting it in a file with timestamps. Transcribing an audio file is fairly difficult and takes quite a bit of time for people who don't have the software and skill for it. The file format for captions are simple, yet it's tedious to add timestamps, especially without software or service for developing caption files.

content/changelog.md

@@ -3,7 +3,7 @@ title: "Changelog"
 nav_title: "Changelog"
 
 lang: en
-last_updated: 2020-11-24
+last_updated: 2020-12-12
 
 permalink: /media/av/changelog/
 ref: /media/av/changelog/   # Do not change
@@ -19,6 +19,16 @@ navigation:
 
 ---
 
+## 2020-December-12
+
+* Text from the first page, [How to Make Audio and Video Accessible section](/media/av/#how-to-make-audio-and-video-accessible), added to the Summary sections of [Audio Description of Visual Information](/media/av/description/),  [Captions/Subtitles](/media/av/captions/), [Transcripts](/media/av/transcripts/), and [Sign Languages](/media/av/sign-languages/) pages.
+* Added WCAG excerpts
+  * [Audio Description of Visual Information](/media/av/description/), at end of [Does My Media Need a Description?]/media/av/description/#checklist) section, added sentence starting with "WCAG excerpts" and the bullets under it.
+  * [Captions/Subtitles](/media/av/captions/), at end of [Does My Media Need a Captions?]/media/av/captions/#checklist) section, added sentence starting with "WCAG excerpts" and the bullets under it.
+  * [Transcripts](/media/av/transcripts/), at end of [Does My Media Need a Transcript?]/media/av/transcripts/#checklist) section, added sentence starting with "WCAG excerpts" and the bullets under it.
+  * [Sign Languages](/media/av/sign-languages/), in [Standards Requirements](/media/av/sign-languages/#standards-requirements) section, in second sentence, added link<br> ```: [Understanding 1.2.6 Sign Language](https://www.w3.org/WAI/WCAG21/Understanding/sign-language-prerecorded.html)```
+* ([Diff 2020-December-12](https://github.com/w3c/wai-media-guide/pull/148/files))
+
 ## 2020-November-24
 
 * Include text in description:

content/description.md

@@ -5,7 +5,7 @@ title_image: /content-images/wai-media-guide/ad.svg
 nav_title: "Description"
 
 lang: en   # change "en" to lang code, here and 2 @@s below
-last_updated: 2020-11-24   # Change to date of translation YYYY-MM-DD (month in middle)
+last_updated: 2020-12-12   # Change to date of translation YYYY-MM-DD (month in middle)
 # translator: "..."
 # contributors: "..."
 
@@ -28,7 +28,7 @@ description: Helps you understand and create description of visual information (
 image: /content-images/wai-media-guide/social.png
 
 footer: >   # Translate words below, including "Date:" and "Editor:". (Do not update the date.)
-   <p><strong>Date:</strong> Updated 24 November 2020. CHANGELOG.</p>
+   <p><strong>Date:</strong> Updated 12 December 2020. CHANGELOG.</p>
    <p><strong>Editor:</strong> <a href="http://www.w3.org/People/Shawn">Shawn Lawton Henry</a>. ACKNOWLEDGEMENTS lists contributors and credits.</p>
    <p>Developed by the Education and Outreach Working Group (<a href="http://www.w3.org/WAI/EO/">EOWG</a>). Originally drafted as part of the <a href="https://www.w3.org/WAI/WCAGTA/">WCAG TA Project</a> funded by the <abbr title="United States">U.S.</abbr> Access Board. Revised as part of the <a href="https://www.w3.org/WAI/expand-access/">WAI Expanding Access project</a> funded by the Ford Foundation.</p>
 
@@ -38,7 +38,12 @@ footer: >   # Translate words below, including "Date:" and "Editor:". (Do not up
 {% include box.html type="start" title="Summary" class="" %}
 {:/}
 
-This page helps you understand and create description of visual information (called _audio description_, _video description_, and _described video_) for new and existing videos. (It does not apply to audio-only, such as podcasts.)
+Description of visual information is called **_audio description_**, **_video description_**, or **_described video_** in different areas.
+
+Description provides content to people who are blind and others who cannot see the video adequately. It describes visual information needed to understand the content, including text displayed in the video.
+
+This page helps you understand and create description of visual information for new and existing videos.
+(Description does not apply to audio-only, such as podcasts.)
 
 {::nomarkdown}
 {% include box.html type="end" %}
@@ -118,6 +123,14 @@ Video:
 {% include box.html type="end" %}
 {:/}
 
+<br>
+
+**WCAG excerpts** with emphasis added, additions in [brackets], and links to more information in "Understanding WCAG":
+* [A 1.2.1 Audio-only and Video-only](https://www.w3.org/WAI/WCAG21/Understanding/audio-only-and-video-only-prerecorded.html) (Prerecorded): For... Prerecorded Video-only: Either an alternative for time-based media [descriptive transcript] ***or*** an audio track [of description] is provided that presents equivalent information for prerecorded video-only content.
+* [A 1.2.3 Audio Description or Media Alternative](https://www.w3.org/WAI/WCAG21/Understanding/audio-description-or-media-alternative-prerecorded.html) (Prerecorded): An alternative for time-based media [transcript] ***or*** audio description of the prerecorded video content is provided for synchronized media...
+* [AAA 1.2.5 Audio Description](https://www.w3.org/WAI/WCAG21/Understanding/audio-description-prerecorded.html) (Prerecorded): Audio description is provided for all prerecorded video content in synchronized media.
+* [AAA 1.2.7 Extended Audio Description](https://www.w3.org/WAI/WCAG21/Understanding/extended-audio-description-prerecorded.html) (Prerecorded): Where pauses in foreground audio are insufficient to allow audio descriptions to convey the sense of the video, extended audio description is provided for all prerecorded video content in synchronized media. 
+
 ## Description Considerations, Skills, and Tools
 
 When accessibility is considered _before_ videos are produced, it significantly cuts down on cost and effort to develop description. For some types of video (such as some training videos), description of the visual information can be seamlessly integrated by the speakers as the video is planned and created, and you don't need separate description, thus there is no additional cost.

content/sign-languages.md

@@ -4,7 +4,7 @@ title_image: /content-images/wai-media-guide/sign.svg
 nav_title: "Sign Languages"
 
 lang: en   # change "en" to lang code, here and 2 @@s below
-last_updated: 2019-09-10   # Change to date of translation YYYY-MM-DD (month in middle)
+last_updated: 2020-12-12  # Change to date of translation YYYY-MM-DD (month in middle)
 # translator: "..."
 # contributors: "..."
 
@@ -27,7 +27,7 @@ description: Helps you understand and create sign language interpretation for au
 image: /content-images/wai-media-guide/social.png
 
 footer: >   # Translate words below, including "Date:" and "Editor:". (Do not update the date.)
-   <p><strong>Date:</strong> Updated 10 September 2019. CHANGELOG.</p>
+   <p><strong>Date:</strong> Updated 12 December 2020. CHANGELOG.</p>
    <p><strong>Editor:</strong> <a href="http://www.w3.org/People/Shawn">Shawn Lawton Henry</a>. ACKNOWLEDGEMENTS lists contributors and credits.</p>
    <p>Developed by the Education and Outreach Working Group (<a href="http://www.w3.org/WAI/EO/">EOWG</a>). Originally drafted as part of the <a href="https://www.w3.org/WAI/WCAGTA/">WCAG TA Project</a> funded by the <abbr title="United States">U.S.</abbr> Access Board. Revised as part of the <a href="https://www.w3.org/WAI/expand-access/">WAI Expanding Access project</a> funded by the Ford Foundation.</p>
 
@@ -37,7 +37,9 @@ footer: >   # Translate words below, including "Date:" and "Editor:". (Do not up
 {% include box.html type="start" title="Summary" class="" %}
 {:/}
 
-This page helps you understand and create sign language interpretation for audio and video.
+Sign languages use hand and arm movements, facial expressions, and body positions to convey meaning. For many people who are Deaf, sign language is their native language, and some do not understand written language well.
+
+This page helps you understand and create sign language interpretation for audio and video. (Sign language is not required by most policies.)
 
 {::nomarkdown}
 {% include box.html type="end" %}
@@ -75,7 +77,7 @@ There are some efforts to provide automatic sign language from text; however, av
 
 Sign language is not required in most web accessibility policies.
 
-Sign language is in the WCAG standard at Level AAA. _(The Planning page of this resource introduces the [WCAG Standard](/media/av/planning/#wcag-standard).)_
+Sign language is in the WCAG standard at Level AAA: [Understanding 1.2.6 Sign Language](https://www.w3.org/WAI/WCAG21/Understanding/sign-language-prerecorded.html). _(The Planning page of this resource introduces the [WCAG Standard](/media/av/planning/#wcag-standard).)_
 
 ## Skills and Tools
 

content/transcripts.md

@@ -4,7 +4,7 @@ title_image: /content-images/wai-media-guide/transcript.svg
 nav_title: "Transcripts"
 
 lang: en   # change "en" to lang code, here and 2 @@s below
-last_updated: 2020-10-09   # Change to date of translation YYYY-MM-DD (month in middle)
+last_updated: 2020-12-12   # Change to date of translation YYYY-MM-DD (month in middle)
 # translator: "..."
 # contributors: "..."
 
@@ -27,7 +27,7 @@ description: Helps you understand and create transcripts for audio and video med
 image: /content-images/wai-media-guide/social.png
 
 footer: >   # Translate words below, including "Date:" and "Editor:". (Do not update the date.)
-   <p><strong>Date:</strong> Updated 9 October 2020. CHANGELOG.</p>
+   <p><strong>Date:</strong> Updated 12 December 2020. CHANGELOG.</p>
    <p><strong>Editor:</strong> <a href="http://www.w3.org/People/Shawn">Shawn Lawton Henry</a>. ACKNOWLEDGEMENTS lists contributors and credits.</p>
    <p>Developed by the Education and Outreach Working Group (<a href="http://www.w3.org/WAI/EO/">EOWG</a>). Originally drafted as part of the <a href="https://www.w3.org/WAI/WCAGTA/">WCAG TA Project</a> funded by the <abbr title="United States">U.S.</abbr> Access Board. Revised as part of the <a href="https://www.w3.org/WAI/expand-access/">WAI Expanding Access project</a> funded by the Ford Foundation.</p>
 
@@ -37,6 +37,8 @@ footer: >   # Translate words below, including "Date:" and "Editor:". (Do not up
 {% include box.html type="start" title="Summary" class="" %}
 {:/}
 
+Basic transcripts are a text version of the speech and non-speech audio information needed to understand the content. Descriptive transcripts also include text description of the visual information needed to understand the content. Descriptive transcripts are required to provide video content to people who are both Deaf and blind.
+
 This page helps you understand and create transcripts.
 
 {::nomarkdown}
@@ -136,6 +138,15 @@ Video with audio content:
 {% include box.html type="end" %}
 {:/}
 
+<br>
+
+**WCAG excerpts** with emphasis added, additions in [brackets], and links to more information in "Understanding WCAG":
+* [A 1.2.1 Audio-only and Video-only](https://www.w3.org/WAI/WCAG21/Understanding/audio-only-and-video-only-prerecorded.html) (Prerecorded): For prerecorded audio-only and prerecorded video-only media, the following are true...
+  * Prerecorded Audio-only: An alternative for time-based media [transcript] is provided that presents equivalent information for prerecorded audio-only content.
+  * Prerecorded Video-only: Either an alternative for time-based media [descriptive transcript] ***or*** an audio track [of description] is provided that presents equivalent information for prerecorded video-only content.
+* [AAA 1.2.8 Media Alternative](https://www.w3.org/WAI/WCAG21/Understanding/media-alternative-prerecorded.html) (Prerecorded):  An alternative for time-based media [transcript] is provided for all prerecorded synchronized media and for all prerecorded video-only media.
+* [AAA 1.2.9 Audio-only](https://www.w3.org/WAI/WCAG21/Understanding/audio-only-live.html) (Live):  An alternative for time-based media [live stream text or transcript] that presents equivalent information for live audio-only content is provided. 
+
 ### Provide a Descriptive Transcript for Your Videos
 {:.no_toc}