Second International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2001)

Florence, Italy
September 13-15, 2001

The Sound-Damping Characteristics of the Vocal Tract Cavities

Vojtěch Mišun

Brno University of Technology, Faculty of Mechanical Engineering, Brno, Czech Republic

The spectral and modal properties of the vocal tract are important acoustic characteristics since they take part in generating the formants of individual vowels. The positions of vowel formants on the spectrum frequency axis are mainly determined by the parameters and properties of the vocal tract: its size and geometry, boundary conditions ( opening mouth and glottis, closing ) and absorption characteristics of its walls. This paper presents results of experimental analysis of acoustic damping properties of the pig's vocal tract soft parts (tongue) which are, with regard to the acoustic properties in focus, related to the human vocal tract properties. The overview of the experimental methods for evaluation of the damping factors of acoustic cavities is also presented in the paper.

Index Terms. Vocal tract, Acoustic cavity, Acoustic damping factors, Absorption coefficient

Full Paper

Bibliographic reference.  Mišun, Vojtěch (2001): "The sound-damping characteristics of the vocal tract cavities", In MAVEBA-2001, 53-58.