W3C home > Mailing lists > Public > w3c-wai-ig@w3.org > January to March 1999

Re: webcasts

From: Erik Hodge <ehodge@real.com>
Date: Wed, 31 Mar 1999 01:04:00 -0800
Message-Id: <>
To: Charles McCathieNevile <charles@w3.org>, Robert Neff <rneff@moon.jic.com>
Cc: IG <w3c-wai-ig@w3.org>
You can use SMIL and the RealNetworks G2 system to do this right now
using live RealVideo, (or RealAudio, MPEG, AVI, or other data streams G2
supports) along with live RealText.   Then, If you have multiple closed-
caption feeds, you can use a SMIL file switch statement to stream a
different-language text stream to each viewer depending on the language
they specified in their respective players.

Let me know if you need more details.

	- Erik

P.S.: I did not read any prior messages in this thread so excuse me
if my response is not in line.

At 09:19 PM 3/30/99 -0500, Charles McCathieNevile wrote:
>It depends what you want from the closed captioning. If you are happy just
>to overlay the video with captions, you can serve it all up as a single
>video signal - no problem there. If you want to make it work as a separate
>data stream, the real problem is to provide a setup where the text data
>stream can be continuously refreshed. Should still be possible, but I am
>not sure of the techniques - I'll sleep on it.
>Charles McCN
>On Tue, 30 Mar 1999, Robert Neff wrote:
>  please correct me if i am wrong and add your comments.
>  As i understand it, you cannot have simultaneous close captioning on a
LIVE webcast over the internet as you can on television.  basically the
technology is not there yet.  
>  To get the close captioning you need to take the video after it is over
and use something like Adobe premiere to add the close captioning.
>  Is this correct?
>--Charles McCathieNevile            mailto:charles@w3.org
>phone: +1 617 258 0992   http://www.w3.org/People/Charles
>W3C Web Accessibility Initiative    http://www.w3.org/WAI
>MIT/LCS  -  545 Technology sq., Cambridge MA, 02139,  USA
Received on Wednesday, 31 March 1999 03:53:02 UTC

This archive was generated by hypermail 2.3.1 : Tuesday, 13 October 2015 16:21:03 UTC