Free(B)Soft DevelDeveloper Section on Free Accessibility Solutions
Hide panels

User Live section

Are you a user, looking for available products, downloads and information how to use them?

Find our user Live section on

Issue Tracking System

Open and closed bugs, patches, feature requests.

Our motto

For some people, technology makes life convenient, for others, it makes life possible.


Festival extensions and utilities, focused on interaction with Speech Dispatcher

Maintainer:Milan Zamazal <>
On-line documentation:/doc/festival-freebsoft-utils
Git Repository:
Latest version:0.10 (download festival-freebsoft-utils-0.10.tar.gz)
Project archive:/pub/projects/festival-freebsoft-utils
User portal:


festival-freebsoft-utils is a collection of Festival utilities that enhance Festival with some useful features. They provide all what is needed for interaction with Speech Dispatcher.

Key festival-freebsoft-utils features are:

  • Generalized concept of input events. festival-freebsoft-utils allows not only plain text synthesis, but also combining it with sounds. Additionally, mechanism of logical events mapped to other events is provided.
  • Substitution of events for given words.
  • High-level voice selection mechanism and setting of basic prosodic parameters.
  • Spelling mode.
  • Capital letter signalization.
  • Punctuation modes, for explicit reading or not reading punctuation characters.
  • Incremental synthesis of texts and events.
  • Speech Dispatcher support.
  • Rudimentary SSML support.
  • Enhancing the Festival extension language with some functions commonly used in Lisp. Support for wrapping already defined Festival functions by your own code.
  • Everything is written in the extension language, no patching of the Festival C++ sources is needed.

Source code

The source code is managed using Git. You can use the Git web interface or clone the repository from:



Documentation is available as a part of the project and is distributed together with the source code. You can browse the HTML version on-line.

Mailing lists

If you want to discuss festival-freebsoft-utils issues publicly, you can use the Speech Dispatcher mailing lists.


Powered byWiking1.3.2 Accessibility Statement