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RELEASE_NOTES
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RELEASE_NOTES
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Sphinx-4 Speech Recognition System
-------------------------------------------------------------------
Version: 1.0Beta6
Release Date: March 2011
-------------------------------------------------------------------
New Features and Improvements:
* SRGS/GrXML support, more to come soon with support for JSAPI2
* Model layout is unified with Pocketsphinx/Sphinxtrain
* Netbeans project files are included
* Language models can be loaded from URI
* Batch testing application allows testing inside Sphinxtrain
Bug Fixes:
* Flat linguist accuracy issue fixed
* Intelligent sorting in paritioner fixes stack overflow when tokens
have identical scores
* Various bug fixes
Thanks:
Timo Bauman, Nasir Hussain, Michele Alessandrini, Evandro Goueva,
Stephen Marquard, Larry A. Taylor, Yuri Orlov, Dirk Schnelle-Walka,
James Chivers, Firas Al Khalil
-------------------------------------------------------------------
Version: 1.0Beta5
Release Date: August 2010
-------------------------------------------------------------------
New Features and Improvements:
* Alignment demo and grammar to align long speech recordings to
transcription and get word times
* Lattice grammar for multipass decoding
* Explicit-backoff in LexTree linguist
* Significant LVCSR speedup with proper LexTree compression
* Simple filter to drop zero energy frames
* Graphviz for grammar dump vizualization instead of AISee
* Voxforge decoding accuracy test
* Lattice scoring speedup
* JSAPI-free JSGF parser
Bug Fixes:
* Insertion probabilities are counted in lattice scores
* Don't waste resources and memory on dummy acoustic model
transformations
* Small DMP files are loaded properly
* JSGF parser fixes
* Documentation improvements
* Debian package stuff
Thanks:
Antoine Raux, Marek Lesiak, Yaniv Kunda, Brian Romanowski, Tony
Robinson, Bhiksha Raj, Timo Baumann, Michele Alessandrini, Francisco
Aguilera, Peter Wolf, David Huggins-Daines, Dirk Schnelle-Walka.
-------------------------------------------------------------------
Version: 1.0Beta4
Release Date: February 2010
-------------------------------------------------------------------
New Features and Improvements:
* Large arbitrary-order language models
* Simplified and reworked model loading code
* Raw configuration and and demos
* HTK model loader
* A lot of code optimizations
* JSAPI-independent JSGF parser
* Noise filtering components
* Lattice rescoring
* Server-based language model
Bug fixes:
* Lots of bug fixes: PLP extraction, race-conditions
in scoring, etc.
Thanks:
Peter Wolf, Yaniv Kunda, Antoine Raux, Dirk Schnelle-Walka,
Yannick Estève, Anthony Rousseau and LIUM team, Christophe Cerisara.
-------------------------------------------------------------------
Version: 1.0Beta3
Release Date: August 2009
-------------------------------------------------------------------
New Features and Improvements:
* BatchAGC frontend component
* Completed transition to defaults in annotations
* ConcatFeatureExtrator to cooperate with cepwin models
* End of stream signals are passed to the decoder to fix cancellation
* Timer API improvement
* Threading policy is changed to TAS
Bug fixes:
* Fixes reading UTF-8 from language model dump.
* Huge memory optimization of the lattice compression
* More stable fronend work with DataStart and DataEnd and optional
SpeechStart/SpeechEnd
Thanks:
Yaniv Kunda, Michele Alessandrini, Holger Brandl, Timo Baumann,
Evandro Gouvea
-------------------------------------------------------------------
Version: 1.0Beta2
Release Date: February 2009
-------------------------------------------------------------------
New Features and Improvments:
* new much cleaner and more robust configuration system
* migrated to java5
* xml-free instantiation of new systems
* improved feature extraction (better voice activity detection, many bugfixes)
* Cleaned up some of the core APIs
* include-tag for configuration files
* better JavaSound support
* fully qualified grammar names in JSGF (Roger Toenz)
* support for dictionary addenda in the FastDictionary (Gregg Liming)
* added batch tools for measuring performance on NIST corpus with CTL files
* many perforamnce and stability improvments
-------------------------------------------------------------------
Version: 1.0Beta
Release Date: September 2004
-------------------------------------------------------------------
New Features:
* Confidence scoring
* Posterior probability computation
* Sausage creation from a lattice
* Dynamic grammars
* Narrow bandwidth acoustic model
* Out-of-grammar utterance rejection
* More demonstration programs
* WSJ5K Language model
Improvements:
* Better control over microphone selection
* JSGF limitations removed
* Improved performance for large, perplex JSGF grammars
* Added Filler support for JSGF Grammars
* Ability to configure microphone input
* Added ECMAScript Action Tags support and demos.
Bug fixes:
* Lots of bug fixes
Documentation:
* Added the Sphinx-4 FAQ
* Added scripts and instructions for building a WSJ5k language model
from LDC data.
Thanks:
* Peter Gorniak, Willie Walker, Philip Kwok, Paul Lamere
-------------------------------------------------------------------
Version: 0.1alpha
Release Date: June 2004
-------------------------------------------------------------------
Initial release