An overview of speech recognition for Linux
Currently there is no fully functioning commercial or free voice recognition products for Linux. Below is information about what is available :
The Open Mind Speech project is part of the Open Mind Initiative and aims to develop free (GPL) speech recognition tools and applications,.mainly for Linux . The software will be designed so that it can be easily integrated into any application, window manager or desktop environments (KDE and Gnome).
http://freespeech.sourceforge.net/
CVoiceControl (which stands for Console Voice Control) started its life as KVoiceControl (KDE Voice Control). It is a basic speech recognition system that allows a user to execute Linux commands by using spoken commands. CVoiceControl replaces KVoiceControl.
The software includes a microphone level configuration utility, a vocabulary "model editor" for adding new commands and utterances, and the speech recognition system.