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MALT Wiki Techshare 2009
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Transcript of MALT Wiki Techshare 2009
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The Open University's Institute of Educational Technology
Multi-media Accessibility Are we nearly there yet?
Nick Freear, Web DeveloperWendy Porch, Research Fellow
Institute of Educational Technology, The Open University
Techshare 2009
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I have a stammer• Ask me to repeat if you miss something.
• And please ask questions!
stammering.org
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Agenda• What problems are we trying to solve?
• Existing research and issues
• How can we solve the existing problems?
• Outline of project proposal
• Key project principles
• Some initial evaluations
• Examples/demonstrations
• Round-up, next steps & discussion
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Definitions
• Captions oAlso known as "sub-titles" in UKoText synchronised with video, timed text oPrefer styling to indicate speaker - position, colouroFor deaf/hard of hearing
• Closed captionso"Captioning you have to turn on", broadcast
• TranscriptoText, often without synchronisation
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Definitions (2)
• Audio descriptionoDescriptions of the video inserted into spaces in the audio track i.e. what’s happening on screen?
oFor blind/ low vision people oCan get it for some TV programs, videos, DVDs, live events
oHard to find for online videos
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Context
"Basic web accessibility is a known commodity now... But nearly ten years after specifications first required it,
online captioning still pretty much does not exist." Joe Clark, A List Apart, November 2008.
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More context!
( Gratuitous logos )
iTunes U
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Doesn’t YouTube do Captions?
Yes, captions and annotations, since August 2008. However:• Only the video owner can upload/ author• No editor• (Not portable/ embeddable)• Captions can not be styled • Not open content
Only approximately 0.5% of YouTube videos are captioned (automated analysis on small corpus of 34 words - more work).
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What's the state of play?At the Open University:
• Course media is routinely transcribed (OU/iTunes U 95%)• It is not routinely captioned or audio described.
W3C Web Content Accessibility Guidelines:
• WCAG 1.0, 1999 - 1.4: Level A - transcript is sufficient.• WCAG 2.0, Dec 2008 - Level A requires captions, not
audio description. Vimler: annotation.Moodle et al:
• No easy way to integrate captions
Some R&D projects are looking at content personalisation in E-Learning
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Accessible Multimedia in E-Learning (1)TILE Project: Adaptive Technology Resource Centre, University of
Toronto (http://inclusivelearning.ca)
• Early implementation of content personalisation standards that map user preferences to content served.
• Not held in a learning management system
• Reusable Learning Object Repository for Educators
• Videos provided with captions and audio descriptions
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Mars Rover Mission VideoAudio Descriptions provide an overview of the onscreen action,
particularly that which is not mentioned in the narrative of the video.
(insert Mars rover example here)
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Accessible Multimedia in E-Learning (2)• EU4ALL Project. UKOU, UNED, Atos Origin, York
University (amongst many others!) • www.eu4all-project.eu• Content personalisation based on evolved standards
related to user preferences. i.e. I'd prefer the video with the audio descriptions please!
• Process for providing matching developed for dotLRN and Moodle learning environments
• Alternatives for videos in the standards include captions, audio description, sign language interpretations, transcripts
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Moodle video with Audio Description
(http://eu4all.open.ac.uk/eu4all/mod/resource/view.php?id=75)
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Other Accessible Multimedia Fun!Stretch Project (ATRC, University of Toronto)
http://stretch.atrc.utoronto.ca
• Project 'stretched' perceptions of artists & art students to be more inclusive of people with disabilities
• Participants produced numerous examples of cultural works that include multiple sensory modalities & a gallery of works on the theme of inclusion
• Provided tools to new media artists for adding descriptions, captions & alternative video
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Tools for Adding Captions and/or Audio Descriptions
CapScribe: capscribe.snow.utoronto.ca NCAM's Magpie ncam.wgbh.org/webaccess/magpie LiveDescribe: www.livedescribe.com MovCaptioner: www.synchrimedia.com YouTube CC: www.youtubecc.com CaptionTube: captiontube.appspot.com
Accessify's YouTube Caption Creator: accessify.com/tools-and-wizards/... – http://is.gd/1yiVU
DotSub: dotsub.com
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How can we address the lack of captions & audio descriptions online?
Multimedia Alternatives
the MALT Wiki Project
Collaborative production of alternative content
Web services to ease use
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Big Principles
• Accessibility/usability • Data portability/ content as a service/ connections• Quality & learning design *• Open content • Software as a service• Free (open-source) software • Social production/ co-creation/ crowd-sourcing• Perpetual beta, hacking the Web, agile
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Media player evaluation
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dotSUB.com - transcribing
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dotSUB.com "any video any language"
• + Transcription/ translation can be collaborative - Wiki-like• + Captions are portable (W3C TT XML, Subrip SRT)• + Ajax-based editor or import captions• + Powerful search, including in RSS• + Rich meta-data, including caption attribution• + Creative Commons licenses are encouraged
• - Uploader must be owner/ permission of owner of video *• - Connections with eg. YouTube not explicit• - Captions don't indicate person - TT styling - retrofit?• - Meta-data not exposed in RSS search or TT - YET• - No comments, rating, user profile - not "social" YET
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Social production• Wikipedia, Geocaching, Open street map, Project
Gutenberg, Librivox, talking newspapers, open source …– What motivates? User scenarios ...
• Preece, Jennifer & Shneiderman, Ben (2009)
"The Reader-to-Leader Framework: Motivating Technology-Mediated Social Participation"
– 4 stages – reader, commenter, contributor, leader
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View 'in-situ' - client-side
(OLnet)
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View 'in-situ' - server-side
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Multi-layer web serviceContent-creator YOU
|• <a rel=”embed” href=”http://youtube.com/watch?v=UnI”>Title</a>
|• Wordpress/ Drupal/ Moodle module/ filter
|• jquery.oembed.js
|• Oembed – YouTube, Slideshare, Flickr, Vimeo ...
|• Remote server
|• Player <object> + HTML + Javascript
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A new player – uses oEmbed, HTML/ Javascript
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YT player modified – user Javascript
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Next Steps• Explore internal/ external funding• Conversations• Work on player + personalisation• Caption/ AD editing/ discovery functions• A workshop ("Scripting Enabled")
Build a community – please help!
[email protected] – @[email protected]
maltwiki.org
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We didn't have time for...
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Flash 'wmode' is harmful
• wmode = 'window' (default) - OK.
<object data="player.swf"> <param name="wmode" value="window" /> ...
• wmode = 'opaque' or 'transparent' – inaccessible.
<param name="wmode" value="opaque" />
• Answer - don't set wmode.
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Next steps detailRoadmap: no money, no timescale! Testing - <iframe>, screen readers, high contrast... "Complete" the MALT/Flow player - volume, progress bars,
theme, language (research Flow controlbar custom.) Do MALT/YouTube/JS player - matching UI. Personalization demo, Plug-ins: Wordpress, Moodle, Drupal... Audio Description - CapScribe, Java Web Start/JNLP? Captioning – online/ desktop/ import/ export Developer documentation. Translation/ Localization, player - French, Chinese... Wiki features, community building, talk talk...?
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Wordle - project keywords