Speech simulation based on MR images of the vocal tract

Brad H. Story, Eric A. Hoffman, Ingo R. Titze

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


There have been considerable research efforts in the area of vocal tract modeling, but there is still a very small body of information regarding direct 3-D measurements of the vocal tract shape. The purpose of this study was to acquire, using MRI, an inventory of three-dimensional vocal tract airway shapes that correspond to a particular set of vowels and consonants. The 3-D shapes were analyzed to find the cross-sectional areas along the centerline extending from the glottis to the mouth to produce an "area function". These area functions were then used as input to a computer model of one-dimensional acoustic wave propagation in the vocal tract. The final result was a simulation of the speech waveform radiated from the mouth and closely similar to the speech waveform recorded from the same subject.

Original languageEnglish (US)
Pages (from-to)179-190
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - May 24 1995
EventMedical Imaging 1995: Physiology and Function from Multidimensional Images - San Diego, United States
Duration: Feb 26 1995Mar 2 1995


  • MRI
  • Simulation
  • Speech
  • Synthesis
  • Vocal tract

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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