THE POSSIBILITIES OF TUNING AND OPTIMISATION OF ACOUSTIC RESONANCE PROPERTIES OF THE HUMAN VOCAL TRACT

Abstract eng:
The paper deals with optimization process finding such geometrical form of acoustical cavities of the human supraglottal spaces which leads to excitation of predefined acoustic resonance, especially between a domain of the third and the fifth formant. This frequency domain is important for voice timbre, namely for singing voice ('the singer's formant'). The problem is solved by the transfer matrix method using conic acoustic elements for the vocal tract modelling and numerical method of searching a minimum of a goal function of several variables. The results should help to obtain a physical background for voice rehabilitation, for teaching of opera singers at musical faculties and for better understanding of biomechanics of voice production.

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