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Telephony based speech technology—From laboratory visions to customer applications

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Abstract

This paper describes how research into Automatic Speech Recognition (ASR) and Text to Speech Synthesis (TTS) is being widely applied within the UK telephone network. It compares and contrasts telephony based speech technology with that used in non-telephony based applications and describes some of the special problems associated with integrating these into the existing telephone network. In particular, it highlights the main issues concerned with providing flexible, yet robust, multiple channel systems and shows how this has been achieved on a commercial speech platform. Finally, it describes how the platform has been used to deliver a number of advanced services including CallMinderTM and MeterLinkTM and how it is now being used to trial larger vocabulary applications.

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References

  1. BT Technology Journal—Theme: Speech Technology for Telecommunications, Vol. 14, No. 1, January 1996a.

  2. BT Technology Journal—Theme: ISAP and Its Application, Vol. 14, No. 2, April 1996b.

  3. Whittaker S.J. and Attwater D.J. 1995. Advanced speech applications—The integration of speech technology into complex services.ESCA Workshop on Spoken Dialogue Systems—Theory and Application, pp. 113–116.

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Johnston, D. Telephony based speech technology—From laboratory visions to customer applications. Int J Speech Technol 2, 89–99 (1997). https://doi.org/10.1007/BF02208821

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Keywords

  • telephony based speech technology
  • speech platforms
  • directory automation
  • text to speech
  • large vocabulary speech recognition