CMU Sphinx 4 Changelog

What's new in CMU Sphinx 4 1.0 Beta 5

Sep 1, 2010
  • Large arbitrary-order language models
  • Simplified and reworked model loading code
  • Raw configuration and and demos
  • HTK model loader
  • Many code optimizations
  • JSAPI-independent JSGF parser
  • Noise filtering components
  • Lattice rescoring
  • Server-based language model

New in CMU Sphinx 4 1.0 Beta 3 (Oct 5, 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

New in CMU Sphinx 4 1.0 Beta 2 (Feb 17, 2009)

  • new much cleaner and more robust configuration system
  • refactored to make use of java5 language features
  • new API to setup speech recognizers without any xml
  • improved feature extraction (better voice activity detection, many bug-fixes)
  • Cleaned up some of the core APIs
  • 'include' and 'extends' 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 performance and stability improvements