CMU Sphinx is a group of open source speech recognition projects.

The Sphinx Group has been supported for many years by funding from the Defense Advanced Research Projects Agency, and the recognition engines to be released are those that the group used for the various DARPA projects and their respective evaluations.

Recent support for the project also include Telefónica I & D, Sun Microsystems, and Mitsubishi Electric Research Labs.

The licensing terms for the Sphinx engines and tools are derived from BSD, and based, in particular, upon the license for the Apache web server. There is no restriction against commercial use or redistribution. (License terms for CMU Sphinx)

The packages that the CMU Sphinx Group is releasing are a set of reasonably mature, world-class speech components that provide a basic level of technology to anyone interested in creating speech-using applications without the once-prohibitive initial investment cost in research and development; the same components are open to peer review by all researchers in the field, and are used for linguistic research as well.

External links

• CMU Sphinx homepage