First, scanners and ocr programs don't produce audible text. They produce text
in some format, such as rtf, or txt or arc or whatever else. But it is, plain
and simply text with no audible component. The audible part
comes in when you play this document through a speech synthesizer, such as the
keynote speech, or a text to speech engine, such as Eloquence. If you were to
download a file from Bookshare and open it in some
program that then let you make mp3 files from the document, and if those mp3
files conformed to whatever the Braillenote/Voicenote need to see in order for
the files to play successfully on the device, then yes, you
could do as you suggest. But why do that? Unless you particularly like the
sound of a particular speech engine over Keynote? The mp3 file which results
from a given text file will be a whole lot larger than the original
file, thus allowing you to store far fewer documents on your bn/vn.
Mary
