Techniques for Creating Accessible Closed Captioned WebBased Video

Techniques for Creating Accessible, Closed Captioned Web-Based Video David Klein K. “Fritz” Thompson California State University - Northridge 21 st Annual International Technology and Persons with Disabilities Conference Los Angeles, California March 22, 2007 http: //disability. law. uiowa. edu/lhpdc/publications/kleinpubs. html

Creating Accessible Video Basic usability ® Start with video / audio of highest possible quality ® Acquire secondary audio source and/or CART (realtime caption) file if possible ® Capture, edit and compress video ® ® 3 output formats: . mov, . wmv, and. flv Attention to first frame Black Titling

Video Compression Examples ® See “Compare compression methods” link on CD index. html file. Copy CD to desktop (hold down Option key and drag CD icon to a space on the desktop) Open the new folder Double click index. html

Tips ® High quality audio makes better movies and better transcripts ® Turn off smart quotes, other autocorrect options (Word) ‘’ Curly apostrophes ‘ Em dash — Smart quotes “ ”,

Future ® ® Podcasts – See i. Tunes Our Flash video player development ® Speech recognition ® ® Customized controls (larger, more accessible) More configuration options in external XML file Customized formatting within captions Real-time voice recognition Automatic time codes (real-time) Searchable / Linkable video Use of semantic markup (XHTML) for transcript files that can be used to produce caption files automatically

DFXP Distribution Format Exchange Profile of the timedtext authoring format (TT AF) ® Non-proprietary format from the W 3 C ® Can be used as a direct distribution/authoring format for captions, subtitles or other instances of timed text ® Can also be used as a transformation-target format (e. g. , converting from proprietary formats such as SAMI, QTtext, Real. Text) ® CC for Flash and cc. Player recognize a subset of DFXP ® Currently a candidate recommendation from the W 3 C ®

Contact ® Law, Health Policy & Disability Center ® http: //disability. law. uiowa. edu/ LHPDC Bulletin Board http: //disability 2. law. uiowa. edu/bbs David Klein 280 -1 Boyd Law Bldg. College of Law University of Iowa City, IA 52242 319 -335 -6748 david-klein@uiowa. edu K. “Fritz” Thompson 280 -1 Boyd Law Bldg. College of Law University of Iowa City, IA 52242 319 -335 -6748 kenneth-d-thompson@uiowa. edu