Re: Changing voices in screen readers Re: Múltiplas vozes em leitores de telas

yes, 
you can try multiple voices with JAWS (screen reader) and MAGic (screen 
magnifier with speech), even in "40-minute demo mode". 
see 
http://doccenter.freedomscientific.com/doccenter2/doccenter/rs25c51746a0cc/voiceprofiles/02_voiceprofiles.htm

For example, one can change the voice in context, such as for any of the 
following:
Adjust combo box. The Adjust combo box defaults to All Contexts, but here 
you can also choose the following voices to change: 
PC Cursor Voice
JAWS Cursor Voice
Keyboard Voice
Tutor and Message Voice
Menu and Dialog Voice

So if one changed the settings for the voice for Menu and Dialogs, they 
would "sound different" from regular text on the page/app.  I've actually 
done this when training sighted users to user JAWS as a test tool so they 
"hear" a different voice for different controls and labels vs regular 
text; kind of audio styling to match the visual styling.  As you can 
imagine however, the JAWS voice is still odd sounding to the first time 
listener, so we emphasize the visible lists of links and controls list 
that JAWS displays.

Having said all this, I still believe that 'voice settings' are generally 
the assistive technology's (AT's) and end user's responsibility, and NOT 
the web author's.  Remember, we're not creating a one-size fits all audio 
version of a web site; authors and developers are *enabling* non-visual 
access to a web app.  Enabling is both a design and coding practice. 
Novice screen reader users will "turn on" all the vebosity so they can to 
"learn", while power screen reader users will turn off most of the 
verbosity settings.  Quality AT like JAWS and MAGic allow the end user 
(and sighted testers) to create "profiles" that they can switch to in 
different contexts. 
____________________________________________
Regards,
Phill Jenkins, 
IBM Accessibility, created 
'IBM Screen Reader for DOS'
'IBM Screen Reader for OS/2'
'IBM Home Page Reader'