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RE: Captions for audio clips

From: Bruce Bailey <bbailey@clark.net>
Date: Tue, 14 Dec 1999 08:25:53 -0500
Message-ID: <01BF4614.BC80A160.bbailey@clark.net>
To: Web Content Accessibility Guidelines <w3c-wai-gl@w3.org>
If I am following this then, P1 is text transcript of auditory information, 
while P2 would be "live" captions.  So transcript is to audio as ALT is to 

Where do the guidelines differentiate between music/sound/noise and speech 
output / voice recording?  What is the audio equivalent for ALT=""?  What 
is the appropriate tags for the annoying MIDI background "music" that many 
sites seem to favor?

On Monday, December 13, 1999 8:45 PM, Jason White 
[SMTP:jasonw@ariel.ucs.unimelb.EDU.AU] wrote:
> While I agree in large measure with Eric's comments, one point of
> clarification should be noted: the guidelines do take account of sound
> files (namely in checkpoint 1.1), but, on my interpretation, these are 
> presently subject to the synchronization requirement of checkpoint 1.4.
> Charles has argued (and I agree with him) that such synchronization is
> necessary. This is particularly the case, as Eric rightly notes, in
> respect of long, changing sounds and audio streams. Naturally, one can
> dispute the priority level. To what extent is it beneficial, for those
> with limited hearing, to have the sounds synchronized with the textual
> transcript, and to what degree does it hinder access if this is not so?
> At present, as I read the guidelines (and I do so against the background
> of their history) the textual equivalents of audio files (where these are
> not part of a "multimedia presentation"--that is to say, where they are
> not accompanied by visual content) need not be synchronized with the
> sound. Charles has argued persuasively that such a requirement should be
> added in a future revision or as an erratum.
Received on Tuesday, 14 December 1999 09:38:59 UTC

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