The Edinburgh Speech Tools LibraryThe Edinburgh Speech Tools Library is a collection of C++ class, functions and related programs for manipulating the sorts of objects used in speech processing. It includes support for reading and writing waveforms, parameter files (LPC, Ceptra, F0) in various formats and converting between them. It also includes support for linguistic type objects and support for various label files and ngrams (with smoothing).
In addition to the library a number of programs are included. An intonation library which includes a pitch tracker, smoother and labelling system (using the Tilt Labelling system), a classification and regression tree (CART) building program called wagon. Also there is growing support for various speech recognition classes such as decoders and HMMs.
The Edinburgh Speech Tools Library is not an end in itself but designed to make the construction of other speech systems easy. It is for example to provided the underlying classes in the Festival Speech Synthesis System
The speech tools are currently distributed in full source form free for unrestricted use.
The following documentation is also included with the library: