WebAIM - Web Accessibility In Mind

E-mail List Archives

Re: live conference text captioning


From: Jared Smith
Date: Jan 10, 2008 3:00PM

On 1/10/08, Andrew Kirkpatrick < <EMAIL REMOVED> > wrote:
> Hi,
> I need to gather some information for the W3C WCAG group on methods for
> introducing live captioning into a web page.

If I understand your question correctly, I've seen or implemented the
following methods:

- Java applet
- AJAX (XMLHttpRequest) requests that update a portion of the page
- Flash object - using XMLSocket() (Used to display captions directly
within the page or to periodically update an HTML element)
- HTTP refresh to get new/content either manually and automatically (meta)
- Embedded media player connected to streaming server (e.g., RealText
streaming to RealPlayer)

I'm sure there are more, but most probably use some adaptation of one
of these technologies. Outside the browser, there are many methods
available - it's not a requirement that captions for web media be
provided within the browser itself.

Jared Smith