CMU Sphinx Downloads

CMU Sphinx toolkit has a number of packages for different tasks and applications. It's sometimes confusing what to choose. To cleanup, here is the list

• Pocketsphinx — recognizer library written in C.
• Sphinxbase — support library required by Pocketsphinx
• Sphinx4 — adjustable, modifiable recognizer written in Java
• CMUclmtk — language model tools
• Sphinxtrain — acoustic model training tools

We recommend you to use the latest available releases:

• sphinxbase-0.7
• pocketsphinx-0.7
• sphinx4-1.0beta6
• sphinxtrain-1.0.7
• cmuclmtk-0.7

If you want to try bleeding edge version, download subversion snapshots or checkout from subversion. Then compile packages from the source code, but remember that there is no guarantee they will be stable:

• pocketsphinx-snapshot
• sphinxbase-snapshot
• sphinx3-snapshot
• sphinx4-snapshot
• cmuclmtk-snapshot
• sphinxtrain-snapshot

Older releases and files could be found on SourceForge http://sourceforge.net/projects/cmusphinx/files/

Binary packages for Ubuntu (versions 8.04 through 10.04) can be found here: https://launchpad.net/~dhuggins/+archive/cmusphinx/+packages

CMUSphinx assumes that you use the statistical models which describe language. There are many models trained for various acoustic conditions and various performance requirements. We collect the best models available at our download page. We hope you'll be able to find the best model for your language there:

Download Models