espeak is GO. I'm amazing this feature supporting many languages.
orca provide the GUI so it's OK with UTF-8 only.
* espeak: GO
Message I18N
============
* N/A: CLI for developers.
Printing
========
* N/A
String
======
* OK: works with UTF-8.
File operation
==============
* N/A
Character set
=============
* N/A: UTF-8 only
Font
====
* N/A
Locale
======
* N/A: en_US.UTF-8 binding.
Key map
=======
* N/A
Short cut key
=============
* N/A
Input Method
============
* N/A
Image, Sound, Movie
===================
* N/A
Accessibility
=============
* OK: speaking is ok for many languages.
I have the plan of another application for Japanese.
CDE compatibility
=================
* N/A