Epos is a universal text-to-speech engine. 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.
The text being processed by Epos is internally stored in a multi-level data structure suitable for the application of transformational rules. Every phonetic unit (or an approximation of one) is represented by a single node in the structure. The nodes are organized into layers corresponding to linguistic levels of description, such that a unit of level n can list its immediate constituents, that is units of level n-1. Every layer has a symbolic name, which is used to refer to it in the rules.
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Here are some key features of "Epos":
· Czech and Slovak text to speech synthesis configuration
· LPC and time domain speech synthesizers
· Prosody modelling driven by rules, prosody models and artificial neural networks
· All languange dependencies are defined in the configuration files, as opposed to the source code
· Documentation in English included in the distribution
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