Publication detail

Finding the Most Uniform Changes in Vowel Polygon Caused by Psychological Stress

STANĚK, M. SIGMUND, M.

Original Title

Finding the Most Uniform Changes in Vowel Polygon Caused by Psychological Stress

Type

journal article in Web of Science

Language

English

Original Abstract

Using vowel polygons, exactly their parameters, is chosen as the criterion for achievement of differences between normal state of speaker and relevant speech under real psychological stress. All results were experimentally obtained by created software for vowel polygon analysis applied on ExamStress database. Selected 6 methods based on cross-correlation of different features were classified by the coefficient of variation and for each individual vowel polygon, the efficiency coefficient marking the most significant and uniform differences between stressed and normal speech were calculated. As the best method for observing generated differences resulted method considered mean of cross-correlation values received for difference area value with vector length and angle parameter couples. Generally, best results for stress detection are achieved by vowel triangles created by /i/-/o/- /u/ and /a/-/i/-/o/ vowel triangles in formant planes containing the fifth formant F5 combined with other formants

Keywords

Speech processing, emotion recognition, psychological stress, vowel polygons.

Authors

STANĚK, M.; SIGMUND, M.

RIV year

2015

Released

19. 6. 2015

ISBN

1210-2512

Periodical

Radioengineering

Year of study

24

Number

2

State

Czech Republic

Pages from

604

Pages to

609

Pages count

6

BibTex

@article{BUT113975,
  author="Miroslav {Staněk} and Milan {Sigmund}",
  title="Finding the Most Uniform Changes in Vowel Polygon Caused by Psychological Stress",
  journal="Radioengineering",
  year="2015",
  volume="24",
  number="2",
  pages="604--609",
  doi="10.13164/re.2015.0604",
  issn="1210-2512"
}