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LLSTI uses Festival and Festvox. These are mature, open source tools which have already been utilised by many people from around the world. However, LLSTI partners have been extending the tools in various ways to allow even better TTS systems to be produced.
In the early years of LLSTI, LLSTI partners Centre for Speech Technology Research (CSTR) at Edinburgh University developed a unit-selection based synthesizier, MultiSyn, for Festival. The early availability of MultiSyn enabled us to produce a much higher quality of speech synthesis in our initial TTS systems than would otherwise have been possible. MultiSyn has now been incorporated into Festival.
LLSTI partners Language Technology Research Centre (LTRC) at IIIT Hyderabad have produced FLAN, a generic shell for Morphological Decomposition (MD) and chunking. It can be used as a stand-alone system or as a Festival module. FLAN uses a very powerful FST formalism which allows MD in (we believe) almost all languages. Data for each language needs to be supplied in the specified format, but no programming is required.
See the downloads tools page for other Festival modules & tools produced by LLSTI partners.




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