[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
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