Techniques for Creating Accessible Closed Captioned Web Based

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, 2006 http: //disability. law. uiowa. edu/lhpdc/publications/kleinpubs. html

Media Player Closed Captioning Options ® SAMI file with carefully selected file name File name must match the video name Video. wmv Video. smi Mostly works Captions must be turned on in Media Player ® Address to video that includes SAMI address ® http: //www. mydomain. com/video. wmv? sami=http: //www. mydomain. com/captions. smi SAMI file and. asx file SAMI file contains caption text and parameters . asx file combines video and SAMI file (like SMIL file)

Media Player Captioning & Deployment ® Video . wmv ® Caption file . smi (SAMI) ® Integration file . asx Integrates video and caption files ® HTML

ASX File Characteristics ® Use XML standards (mostly) ® Tags NOT case sensitive ® All elements closed <tag>xxx</tag> (open and close tags) <tag /> (no explicit close tag; use the slash)

ASX File Structure <ASX Version="3. 0" Preview. Mode="No" > <!-- Put playlist metadata here --> <entry> <!--Put clip metadata here. --> <Title> </Title> <copyright> </copyright> <!--Here's the video and captioning info --> <Ref HREF="http: //www. yourdomain. edu/video. wmv? sami=http: // yourdomain. edu/video. . smi" /> </entry> </ASX>

ASX File ® ASX version number (Preview. Mode) ® Metadata for overall content or playlist Event or playlist title Authors/editors Copyright information) ® Entry (clip) content More metadata for clip (video title, copyright) File locations (complex URL) video. wmv? sami=captions. smi

Create ASX File Activity ® Handout: Windows Media Player SAMI/ASX Activity - Assemble Files ® Objective: Modify the SAMI file created with MAGpie and assemble files to create a captioned, Windows Media Player video.