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Related Experiment Video

Updated: Mar 8, 2026

Author Spotlight: Advancements in the Fabrication of Synthetic Vocal Fold Models for Phonetic and Robotic Applications
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An acoustically-driven vocal tract model for stop consonant production.

Brad H Story1, Kate Bunton1

  • 1Speech Acoustics Laboratory, Department of Speech, Language, and Hearing Sciences, University of Arizona, P.O. Box 210071, Tucson, AZ 85721.

Speech Communication
|January 18, 2017
PubMed
Summary

This study introduces a new speech synthesis model using vocal tract area functions. It generates realistic consonant sounds by modifying vowel shapes based on resonance frequency changes.

Keywords:
area functionformantresonancespeech modelingspeech synthesisvocal tract

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Area of Science:

  • Acoustics
  • Speech Science
  • Bioacoustics

Background:

  • Speech production models are crucial for understanding human communication.
  • Existing vocal tract area function models require refinement for accurate consonant synthesis.

Purpose of the Study:

  • To develop an advanced multi-tier vocal tract area function model.
  • To generate speech modulations using a vowel substrate and consonant superposition function.
  • To enhance speech synthesis and vocal tract shaping understanding.

Main Methods:

  • Specified consonant parameters as directional resonance frequency changes in a vowel substrate.
  • Utilized acoustic sensitivity functions to transform resonance patterns into vocal tract shape deformations.
  • Avoided direct specification of constriction location and extent.

Main Results:

  • Generated physiologically realistic vocal tract constrictions and expansions.
  • Produced easily identifiable speech sounds for target consonants.
  • Demonstrated the model's effectiveness in synthesizing speech.

Conclusions:

  • The developed model is a valuable enhancement for area function-based speech synthesis.
  • This approach provides a novel tool for studying vocal tract shaping during speech production.
  • The model successfully links acoustic parameters to articulatory configurations.