Video accessibility for the HTML5 video tag

This is a submission to the W4A 2009 Web accessibility conference (http://www.w4a.info/ ). In the video, we explain the current status of video accessibility on the Web and means forward for HTML5. We propose a solution for associating textual captions with video and explain it on the example of Ogg Kate, SRT and DFXP. We then explain further challenges such as Sign Language, Audio Annotations, and more general types of time-aligned text, e.g. Karaoke, music lyrics, ticker-text, transcripts, or annotations with hyperlinks.

Category:

Science & Technology

Tags:

• W4A
• web video accessibility
• HTML5
• Ogg Kate
• Metavid
• DFXP
• SRT

[ArkBlitz]

For subtitles I'd vote for ASSA (Advanced SubStation Alpha), for music lyrics I'd use LRC. There's also a project for a new subtitle format named Kumaji, you may want to talk with the developer.

About audio, there's the possibility of multiple-languaged videos. It could be done via HTML5, but right now it can be achieved (at least offline) via Matroska Video.

[silviapfeiffer]

@ArkBlitz Thanks for this input. Right now it still looks like SRT will be the basic format. What will be used for the complex features is still up in the air. Could be a new, html-related format. Multitrack video or audio files will have a javascript API. If you are keen, you should follow the WHATWG mailing list.

[yozloy]

great demonstration thanks