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  • This paper deals with speech signal spoken by speaker under psychological stress. The investigation of speaker's stress is based on specific changes in short-time spectrum of vowel phonemes. For each selected signal segment, the spectrum was computed by means of two different approaches: Fourier transform and chirp transform. Comparative results between both spectra served for speaker's stress identification. In case of speech under stress, the obtained spectra differ towards the higher frequencies due to enhanced pitch modulation observed in the envelope of the chirp spectrum. For use in our experiments, a new database of speech under stress consisting of data collected during oral examinations at our university was created.
  • This paper deals with speech signal spoken by speaker under psychological stress. The investigation of speaker's stress is based on specific changes in short-time spectrum of vowel phonemes. For each selected signal segment, the spectrum was computed by means of two different approaches: Fourier transform and chirp transform. Comparative results between both spectra served for speaker's stress identification. In case of speech under stress, the obtained spectra differ towards the higher frequencies due to enhanced pitch modulation observed in the envelope of the chirp spectrum. For use in our experiments, a new database of speech under stress consisting of data collected during oral examinations at our university was created. (en)
  • Příspěvek se zabývá řečovým signálem poznamenaným psychologickým stresem. Určování stresu u mluvčích vychází ze statistické analýzy derivovaných průběhů hlasivkových pulzů. Pro výzkum byl použit řečový materiál ze specielní databáze stresové řeči, obsahující záznamy ústních státních zkoušek. (cs)
Title
  • Analysis of Speech Under Stress Based on Short-Time Spectrum of Vowel Phonemes
  • Statistická analýza hlasivkových pulzů ve stresové řeči založená na krátkodobém spektru samohláskových fonémů (cs)
  • Analysis of Speech Under Stress Based on Short-Time Spectrum of Vowel Phonemes (en)
skos:prefLabel
  • Analysis of Speech Under Stress Based on Short-Time Spectrum of Vowel Phonemes
  • Statistická analýza hlasivkových pulzů ve stresové řeči založená na krátkodobém spektru samohláskových fonémů (cs)
  • Analysis of Speech Under Stress Based on Short-Time Spectrum of Vowel Phonemes (en)
skos:notation
  • RIV/68407700:21230/09:03154163!RIV09-MSM-21230___
http://linked.open...avai/riv/aktivita
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  • 302936
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  • RIV/68407700:21230/09:03154163
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  • speech signal; spectral analysis; stress detection (en)
http://linked.open.../riv/klicoveSlovo
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  • [E887797CBEAF]
http://linked.open...v/mistoKonaniAkce
  • Innsbruck
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  • Anaheim
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  • Proceedings of the IASTED International Conference on Artificial Intelligence and Applications
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http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Brabec, Zdeněk
  • Sigmund, M.
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
number of pages
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  • ACTA Press
https://schema.org/isbn
  • 978-0-88986-780-2
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  • 21230
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