HELP! * GREY=local LOCAL HTML version of Foils prepared 31 January 1996

Foil 35 Infrastructure -- Speech Recognition Support: BBN Hark System

From Master Foilset for Collaborative and Interactive Visualization Project First Review Review Meeting at Rome Laboratory -- 31 January 1996. by Geoffrey C. Fox * See also color IMAGE
Goal: establish speech recognition as a multimedia indexing technology
Assigned GRA to project (has Computer Science MS); Installed Hark on an SGI platform
Initial Review of BBN Hark System
  • Features -- continuous speech recognition (CSR)
  • supports 2,000 word vocabularies selected from a 100K words
  • microphone, telephone, file input
  • Prototyper Toolkit -- write, compile, test grammar files
  • create application dictionaries
  • contains phonetic dictionary (extendable)
  • grammars used as input for HARK recognizer engine
  • Recognizer -- voice model describes the individual words to be recognized
  • grammar defines legitimate seqeuences of words
  • quality of CSR a function of the quality of defined grammar files and dictionaries

Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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