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Introduction

Courses and Seminars

Entropic Products

Continuous Independent ASR

Speech Forms

TTS Class Outline

IVR Telephony

Custom Speech-Recognition Based Application Development

FAQs

Other Sprex Products/Services

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What we do
Sprex, Inc., provides specialized technical consulting services on speech technology for developers of speech-enhanced computer products and applications. Sprex was the primary provider of Technical Services for Entropic, Inc., a major vendor of high-end speech technology toolkits. Areas of Sprex' expertise include Customers of consulting service have included both large and small businessses as well as government customers. For example: the US Navy, American Express, Sharp Microelectronics, Periphonics, NetPhonic Communications, Vicor, and Rockwell Scientific, etc. References are available on request.

Services

  • Custom recognizers for special tasks such as high-perplexity (very long list) recognition:
    • Last Names
    • Street Names
    • Business Names
    • Chemical or drug names
  • Grammar development and refinement
    • Statistical Language Models
    • Hand-crafted "BNF" grammars
  • Dialog system development and refinement
    • VoiceXML, SALT, SpeechWord, Nuance, or ANSR, Sprex' own approach.
  • Model building for state-of-the-art speaker independent recognizers
    • Whole-word models
    • Phrase models for speaker-ID
    • monophone, biphone, triphone HMMs
  • Dictionary development
  • Data collection and cleaning
  • Courses and Seminars on speech recognition and synthesis.
  • Tutorials on speech recognition's underlying technology and algorithms
    • HMM theory, fit, training, recognition, token passing, &c.
  • Tutorials on speech synthesis
  • Custom speech synthesizer development for fixed-grammar applications (See SprexOutTM)
  • Embedded application development

Doing business with us

Sprex has done both small projects of a tutorial or introductory nature for companies new to speech technology, and larger end-product projects, where we worked as part of our customer's project development team. These larger projects include a major role in the successful deployment of speech recognition technology in the financial services sector, as well as directed research in support of a major aerospace firm. Tutorials and short courses are charged at standard consulting rates, plus expenses, with a $1500/day minimum. Development for feasibility or research is typically done on a time-and-materials basis. Fixed-price contracts are also available, after mutual agreement on a Statement of Work with defined deliverables. Please email us with your requirements.

Who we are

Thomas C. Veatch, Ph.D.

Sprex relies on the expertise of its technical lead, Thomas C. Veatch, Ph.D. Dr. Veatch received degrees in Linguistics from Stanford University and the University of Pennsylvania and has also been a professor at Stanford. He is fluent in the building of Hidden Markov model based speech recognition systems. He has strong background in speech synthesis from perspectives both of technology and of application development. With long-term technical interests in computational phonetics, syntax, discourse analysis, and telephony, his expertise is uniquely broad-based in the science and engineering fields related to development of speech-based applications. Interested parties are urged to speak with Dr. Veatch about their application and how best to achieve their goals.
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Date: May 13, 2008