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Towards Automatic Transcription of Spontaneous Czech Speech in the MALACH Project

  • Josef Psutka
  • Pavel Ircing
  • Josef V. Psutka
  • Vlasta Radová
  • William Byrne
  • Veera Venkataramani
  • Jan Hajič
  • Samuel Gustman
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2807)

Abstract

Our paper discusses the progress achieved during one-year effort with building the Czech LVCSR system for an automatic transcription of spontaneously pronounced testimonies in the MALACH project [1]. The difficulty of this task stems from the highly inflectional nature of the Czech language and is further multiplied by the presence of many colloquial words in spontaneous Czech speech and also by the need to handle emotional speech filled with disfluencies, heavy accents, age-related coarticulation and language switching. In this paper we concetrate mainly on the acoustic issues – the proper choice of the front-end parameterization, handling the non-speech events in acoustic modeling and especially the unsupervised usage of the MLLR adaptation technique. A method for selecting suitable language model data is also briefly mentioned.

Keywords

Automatic Speech Recognition Acoustic Model Emotional Speech Speaker Adaptation Language Switching 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Josef Psutka
    • 1
  • Pavel Ircing
    • 1
  • Josef V. Psutka
    • 1
  • Vlasta Radová
    • 1
  • William Byrne
    • 2
  • Veera Venkataramani
    • 2
  • Jan Hajič
    • 3
  • Samuel Gustman
    • 4
  1. 1.Department of CyberneticsUniversity of West BohemiaPlzeňCzech Republic
  2. 2.Center for Language and Speech ProcessingJohns Hopkins UniversityBaltimoreUSA
  3. 3.Institute of Formal and Applied LinguisticCharles UniversityPrahaCzech Republic
  4. 4.Survivors of the Shoah Visual History FoundationLos AngelesUSA

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