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Impact of prosodic structure and information density on vowel space size
Saarland University.
Universite ́ de Lyon and CNRS.
KTH, School of Computer Science and Communication (CSC), Speech, Music and Hearing, TMH, Speech Communication and Technology.ORCID iD: 0000-0001-5953-7310
Saarland University.
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2016 (English)In: Proceedings of Speech Prosody 2016, Boston, MA, 2016Conference paper, Published paper (Refereed)
Abstract [en]

We investigated the influence of prosodic structure and infor- mation density on vowel space size. Vowels were measured in five languages from the BonnTempo corpus, French, German, Finnish, Czech, and Polish, each with three female and three male speakers. Speakers read the text at normal, slow, and fast speech rate. The Euclidean distance between vowel space mid- point and formant values for each speaker was used as a mea- sure for vowel distinctiveness. The prosodic model consisted of prominence and boundary. Information density was calculated for each language using the surprisal of the biphone Xn|Xn−1. On average, there is a positive relationship between vowel space expansion and information density. Detailed analysis revealed that this relationship did not hold for Finnish, and was only weak for Polish. When vowel distinctiveness was modeled as a function of prosodic factors and information density in lin- ear mixed effects models (LMM), only prosodic factors were significant in explaining the variance in vowel space expansion. All prosodic factors, except word boundary, showed significant positive results in LMM. Vowels were more distinct in stressed syllables, before a prosodic boundary and at normal and slow speech rate compared to fast speech. 

Place, publisher, year, edition, pages
Boston, MA, 2016.
Keyword [en]
vowel space, prosodic structure, speech rate, information density
National Category
General Language Studies and Linguistics
Identifiers
URN: urn:nbn:se:kth:diva-203855OAI: oai:DiVA.org:kth-203855DiVA: diva2:1082798
Conference
Speech Prosody,Boston May 31- June3 2016
Funder
German Research Foundation (DFG), SFB 1102
Note

Qc 20170320

Available from: 2017-03-17 Created: 2017-03-17 Last updated: 2017-03-20Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf