[Olympus developers 35]: Next release of PocketSphinx ready for integration and testing

David Huggins-Daines dhuggins at cs.cmu.edu
Sat May 10 16:28:30 EDT 2008


Hi everyone,

New and exciting features include:

 * Word-level confidence estimation using posterior probabilities
 * N-best and confidence estimation work in both N-Gram and FSG modes
 * JSGF grammar support for the FSG decoder
 * Somewhat faster (3% on wsj5k on x86-64, but more on ARM, numbers 
forthcoming)
 * Considerably smaller code footprint (376k versus 801k on x86)
 * Wildly reduced memory footprint in single-pass mode (7.5MB vs. 14.7MB 
for wsj5k on x86-64)
 * Re-entrant API, multiple decoders can coexist in the same program

I have created a branch in the Subversion repository for the future 
release.  Its permanent home is:

https://cmusphinx.svn.sourceforge.net/svnroot/cmusphinx/branches/pocketsphinx-0.5

Like the pocketsphinx-0.4 branch, this contains both pocketsphinx and 
sphinxbase, which will be released simultaneously.

Documentation for the new API can be found at:

http://www.speech.cs.cmu.edu/sphinx/doc/doxygen/pocketsphinx/
http://www.speech.cs.cmu.edu/sphinx/doc/doxygen/sphinxbase/

A migration guide is in progress (but certainly won't be done before 
Black Friday) at:

http://www.speech.cs.cmu.edu/cmusphinx/moinmoin/PocketSphinxMigration



More information about the Olympus-developers mailing list