- The MBROLA
Project
The aim of the MBROLA project, initiated by the TCTS Lab of the Faculté
Polytechnique de Mons (Belgium), is to obtain a set of speech synthesizers for as many
languages as possible, and provide them free for non-commercial applications.
Afrikaans, American English, Arabic, Brazilian Portuguese, Breton, British English,
Canadian French, Croatian, Czech, Dutch, Estonian, French, German, Greek, Korean, Hebrew,
Hindi, Hungarian, Icelandic, Indonesian, Iranian, Japanese, Classical Latin, Lithuanian,
Malay, Polish, Portuguese (European), Romanian, Spanish, Spanish Mexican, Swedish, Telugu,
Turkish, Spanish Venezuelan
- FreeTTS
FreeTTS is a speech synthesis system written entirely in the JavaTM
programming language. It is based upon Flite: a small run-time speech synthesis engine
developed at Carnegie Mellon University. Flite is derived from the Festival Speech
Synthesis System from the University of Edinburgh and the FestVox project from Carnegie
Mellon University.
- The
Festival Speech Synthesis System
Festival offers a general framework for building speech synthesis systems as well as
including examples of various modules. As a whole it offers full text to speech through a
number APIs: from shell level, though a Scheme command interpreter, as a C++ library, from
Java, and an Emacs interface. Festival is multi-lingual (currently English (British and
American), and Spanish) though English is the most advanced.
- Flite:
a small, fast run time synthesis engine
Flite (festival-lite) is a small, fast run-time synthesis engine developed at CMU and
primarily designed for small embedded machines and/or large servers. Flite is designed as
an alternative synthesis engine to Festival for voices built using the FestVox suite of
voice building tools.
- gnuspeech
Gnuspeech is an extensible, text-to-speech package, based on real-time, articulatory,
speech-synthesis-by-rules. That is, it converts text strings into phonetic descriptions,
aided by a pronouncing dictionary, letter-to-sound rules, rhythm and intonation models;
transforms the phonetic descriptions into parameters for a low-level articulatory
synthesiser; and uses these to drive an articulatory model of the human vocal tract
producing an output suitable for the normal sound output devices used by GNU/Linux.
- festvox
The Festvox project aims to make the building of new synthetic voices more systemic and
better documented, making it possible for anyone to build a new voice.
- HMM-Based
Speech Synthesis System (HTS)
HTS version 1.1.1 comes with a small run-time synthesis engine (less than 1 MB including
acoustic models), which can run without the HTK library. The current version does not
include any text analyzer but the Festival Speech Synthesis System can be used as a text
analyzer. This distribution includes a demo script using CMU ARCTIC US English awb, which
generates "voices" for Festival.
- The Epos
Speech Synthesis System
Epos is a language independent rule-driven Text-to-Speech (TTS) system primarily designed
to serve as a research tool. Epos is (or tries to be) independent of the language
processed, linguistic description method, and computing environment.
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