Vocal-tract model experiment for illustrating vowel production
Soo-Ki Hong, S. W. Yoon · The Journal of the Acoustical Society of America · 2000
Everyone can articulate the same words even though each individual has unique vocal organ. Findings of common features in the same vowels articulated by everyone are very useful for speech recognition and reproduction. In this study a vocal tract is modeled with a cylindrical silicone tube to understand the mechanisms of vowel production. The constrictions on the tube are varied with locations, lengths, and degrees. The resonance frequency shifts of vocal-tract depend on the length ratio and the cross-section area ratio of the constriction in the tube. The resonance frequencies show good correlation with the formants measured in speech. [One of the authors (SWY) was supported by the BK21 project.]