Abstract
An articulatory synthesizer has been written for general educational and research use. It has been named Educational Articulatory Synthesizer, EASY, and written in the MATLAB programming language. In its current instantiation, the synthesizer performs calculations in the frequency domain and includes the effects of wall-vibration, viscous and thermal boundary layer loss, and radiation loss. Sources anywhere from the glottis to the mouth can be specified. Further, the code allows for side branches other than the nasal tract so that sounds such as laterals can be specified. A low-frequency aerodynamic module has also been included. Midsagittal shape is controlled by a hierarchy of flesh points. Points high in the hierarchy specify the overall shape by determining reference positions for points lower in the hierarchy, which, in turn, determine the shape locally. [Work supported by grant NIDCD-001247 to CReSS LLC.]
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