ChattyInfty (SAPI5) English Edition Ver.

ChattyInfty is an editor of math documents with voice output, usable by visually impaired people. Math expressions can easily be input and edited using only keyboard, with simultaneous speech output of symbols and math structure with key operations.

It is a plug-in software of InftyEditor. All the functions of InftyEditor, e.g. conversion of the edited results into LaTeX, PDF, MathML, etc. can be used in ChattyInfty.
The default file format of ChattyInfty is identical with that of InftyEditor.(iml)