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3Dプリントされた声道に結合した自己振動の声帯の折り畳みモデル,Part I: 半遮断声道 (SOVT) 管による空気力学値測定
Nicholas A May1, Ronald C Scherer2, David P Meyer3
1Department of Communication Sciences and Disorders, The College of Earth, Life, and Health Sciences, The University of Maine, 5724 Dunn Hall, Orono 04469-5724, Maine.
Journal of voice : official journal of the Voice Foundation
|February 19, 2026
まとめ
半遮蔽声道 (SOVT) 管は,声帯の折り畳みモデルにおける音声の値圧力と流れを著しく低下させた. 管の幾何学は,母音型ではなく,主にこれらの空気力学的測定に影響しました.
科学分野:
- * 物理モデルを利用した音声制作の研究.
- * 音声の空気力学と音響.
背景:
- * 物理的,自己振動する声帯モデル (SO-VFMs) は,声帯のダイナミクスの正確な研究を可能にします.
- * 3Dプリントされた声道 (VTs) と組み合わせたSO-VFMにおける空気力学的測定に対する半遮蔽声道 (SOVT) 運動チューブの影響に関する研究は限られている.
研究 の 目的:
- * SOVTチューブの空気力学値測定に対する影響を調査する.
- *3DプリントしたVTsでSO-VFMsにおける発声値圧力 (PTP) と発声値流量 (PTF) を試験する.
主な方法:
- * 磁気共鳴画像 (MRI) で得られた3DプリントのVTで, /ɑ/と /u/の母音を使用した.
- *モデルは,人間の声帯の振動をシミュレートする多層 SO-VFM に結合されました.
- *様々な条件下でのPTP,PTF,基本周波数 (fo) を測定したもので, SOVTチューブを含む様々な寸法で測定した.
主要な成果:
- * SOVTチューブはPTPとPTFを大幅に減少させ,より長く,より広いチューブは最も低い値を示しました.
- *母音の違い (/u/ vs. /ɑ/) は,PTPに最小の影響を及ぼし,幾何学に依存する効果を示唆した.
- * PTPヒステレス (発症対オフセット) が観察され,チューブ長さに伴いfoが増加した.
結論:
- * SOVTチューブは,音声化のための空気力学的値を下げることができます.
- * 声帯の幾何学と管の寸法は,SOVT運動の有効性を決定する重要な要因です.
- *空気力学と音響の相互作用は,SOVT演習中の声機能を理解するための鍵です.
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