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Include rudimentary support for live/volatile regions #64

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
The Problem: When a paragraph or other region contains live/volatile data that 
changes frequently, the speech output might be out of date by the time the 
system speaks that data (because the string is sent to the speech engine all at 
once). One example of this is a countdown timer.

It would be nice if the system could read the updated information when the 
speech gets to that point in the speech.

Such regions could be marked up with:
aria-role="timer" (see http://www.w3.org/WAI/PF/aria/roles#timer)
or
aria-live="*" (but supported as if it were aria-live="off"; see 
http://www.w3.org/WAI/PF/aria-practices/#liveprops)

The string sent to the speech engine could be split on such live regions so 
that the system could wait for some speech to get done, then check the live 
value, speak it, and then speak the rest of the text.

The one downside is that the speech engine may not have the best intonation and 
inflection because it is being sent only substrings, but I don't think there is 
a good way around that.

Original issue reported on code.google.com by jbjor...@gmail.com on 21 Aug 2013 at 5:37

GoogleCodeExporter commented 8 years ago

Original comment by jbjor...@gmail.com on 21 Aug 2013 at 6:25