As of version 5.2, MaryTTS supports German, British and American English, French, Italian, Luxembourgish, Russian, Swedish, Telugu, and Turkish; more languages are in preparation. MaryTTS comes with toolkits for quickly adding support for new languages and for building unit selection and HMM-based synthesis voices.
Language Coverage
German
(Latin),
English
(Latin - United Kingdom),
English
(Latin - United States),
French
(Latin),
Italian
(Latin),
Luxembourgish; Letzeburgesch
(Latin),
Russian
(Cyrillic),
Swedish
(Latin),
Telugu
(Telugu),
Turkish
(Latin)