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Communication Dans Un Congrès Année : 2010

Flow through simplified vocal tract geometries

Résumé

Production of speech utterances such as fricatives involves a complex interaction of turbulent airflow with the particular geometry of the vocal tract. The current study introduces simplified mechanical rigid static vocal tract geometries consisting of a rectangular channel to which 1 or 2 constrictions are inserted allowing to study flow-obstacle and jet-obstacle interaction. Different constriction geometries and constriction degrees are considered. The flow through different geometries is predicted by simplified flow models and numerical simulation. Pressure and far-field noise are measured for typical geometrical configurations and different flow conditions. In addition, velocity measurements by means of hot-film anemometry are realized. Quantitative and qualitative comparison of modelled and measured values is assessed.
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Dates et versions

hal-00541379 , version 1 (30-11-2010)

Identifiants

  • HAL Id : hal-00541379 , version 1

Citer

Annemie van Hirtum. Flow through simplified vocal tract geometries. CFA 2010 - 10ème Congrès Français d'Acoustique, Apr 2010, Lyon, France. pp.4. ⟨hal-00541379⟩
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