Development of vocal-tract modeling method by concentrated mass model considering wall viscoelasticity

2015 Fiscal Year Final Research Report

• Project/Area Number: 25820075
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Dynamics/Control
• Research Institution: Kyushu University
• Principal Investigator: koba yosuke 九州大学, 工学(系)研究科(研究院), 技術専門職員 (20380602)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 集中系モデル / 人工喉頭 / 声帯振動

Outline of Final Research Achievements

In this study, we aimed to development of a simplified analysis method for vocal folds-tract interaction analysis.
A vocal tract modeled by a concentrated mass model to eigenvalue analyze the speech production mechanisms. This model consists of masses, connecting linear springs, connecting dampers, base support dampers, and base support springs. A frequency response analysis of this model accorded with a measurement using the model of the vocal organ to some extent.
In addition, we proposed model for vocal folds-tract interaction analysis, in which vocal folds modeled as a mass, a connecting linear spring, a connecting damper. this model indicated a possibility for analysis of self-oscillation of the vocal folds.

Free Research Field

能動音響制御