Download Our Software 
  -  (02/08/04)
       
       Prototype System (v5.15): In this release, we have made
       a number of minor bug fixes, and made slight improvements
       to the runtime efficiency of the Baum-Welch trainer.
       These bug fixes will not significantly
       impact the overall decoding performance. This release was
       tested on Solaris x86 and Linux (RedHat v9.0). Note also that
       this is the first release in which we no longer officially support
       Sun Sparc hardware.
       
  
  
   -  (05/15/03)
       
       Production System: A new release (r00_n11) of our C++ speech
       recognition toolkit.
       See our
       download page,
       our
       
       monthly tutorial,
       or our
       
       on-line tutorial
       for more information about the contents of this release.
       
       
  
              
   -  (01/26/03)
       
       Prototype System (v5.14): A cross-word context-dependent
       LVCSR system. Recommended for speech technologists and
       application developers. This release is compatible with gcc
       version 3.2.1. Support to output the zeroth cepstral coefficient
       has also been added to the extract_feature utility
       (useful for some interoperability experiments).
       
  
  
   -  (01/07/03)
       
       Production System:
       This release (r00_n10) contains many common features found in modern
       speech to text (STT) systems: a front end that converts the signal to
       a sequence of feature vectors, an HMM-based acoustic model
       trainer, and a time-synchronous hierarchical Viterbi decoder.
       The new features over last release include:
  
 -  Phonetic decision tree-based state-tying;
      
 
  -  Lexical tree-based N-gram decoding (used to implement
      cross-word phonetic models);
      
 
  -  Annotation graph support;
      
 
  -  Significant changes to the I/O interfaces for
      the recognizer;
      
 
  -  Integrated parallel processing support.
  
       
        A tutorial is available
       to help you get started, and an off-line version
       of the
       
       documentation
       can be downloaded as well.
       
  
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