Vowel space density as an indicator of speech performance

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


The purpose of this study was to develop a method for visualizing and assessing the characteristics of vowel production by measuring the local density of normalized F1 and F2 formant frequencies. The result is a three-dimensional plot called the vowel space density (VSD) and indicates the regions in the vowel space most heavily used by a talker during speech production. The area of a convex hull enclosing the vowel space at specific threshold density values was proposed as a means of quantifying the VSD.

Original languageEnglish (US)
Pages (from-to)EL458-EL464
JournalJournal of the Acoustical Society of America
Issue number5
StatePublished - May 1 2017

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics


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