Archive of messages on the Viavoice mailinglist
the ViaVoice Kit provide the necessary tools to develop applications that incorporate speech recognition using Linux
Multi-lingual text to speech synthesis. Free software download for research purposes.
Festival is a general multi-lingual speech synthesis system developed at CSTR. It offers a full text to speech system with various APIs, as well an environment for development and research of speech synthesis techniques.
Openmind (Freespeech) is a free speech recognition project for Linux It will be designed so that it can be easily integrated into any application or windowmanager as well as the kde and gnome desktop environments
CVoiceControl is a speech recognition system that allows the user to connect spoken commands to Unix commands.