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Voice files specify a language and other characteristics of a voice.
eSpeak NG can be used as a front-end for Mbrola diphone voices.
How to add or improve a language.
The list of phoneme mnemonics for English, for use in the Pronunciation Dictionary.
The tables of the phonemes used by each language, with their properties and sound production.
Different intonation “tunes” may be defined for different languages for clauses which end in full-stop, comma, question-mark, and exclamation-mark.
API definition and header file for a shared library version of eSpeak NG.
SSML (Speech Synthesis Markup Language) and HTML tags recognized by eSpeak NG.
GUI software to edit vowel files and to compile the phoneme data for use by eSpeak NG. See also Espeakedit user interface.