Modelling of non-stationary phonation for classification of vocal fold vibrations
نویسندگان
چکیده
quantitative analysis of the observed vocal fold dynamics in terms of symmetry and regularity is done with a time-dependent two-mass model of the vocal folds. The model's parameters are numerically optimized to emulate the observed non-stationary vocal fold vibrations. These parameters permit an objective interpretation of vocal fold oscillating asymmetries and allow a classification in normal and pathological cases. The practicability of the optimization algorithm is demonstrated with a set of 242 synthetically generated data sets. By applying the optimization procedure to the recordings of the 16 subjects a correct classification into groups of normal and pathological cases was achieved.
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