EMU is a collection of software tools for the creation, manipulation and analysis of speech databases. At the core of EMU is a database search engine which allows the researcher to find various speech segments based on the sequential and hierarchical structure of the utterances in which they occur. EMU includes an interactive labeller which can display spectrograms and other speech waveforms, and which allows the creation of hierarchical, as well as sequential, labels for a speech utterance.
Emu uses Tcl/Tk as a scripting language and to provide various GUI tools for speech database creation and manipulation. Emu uses snack for signal displays and playback and http://libassp.sourceforge.net for signal processing.
The newest Version of EMU (2.0) was released in May 2008.
Category Speech Synthesis - well, this sounds more like speech generation than synthesis, but I suspect that the category probably should have been named more broadly...