Modelling sagittal and vertical phase differences in a lumped and distributed elements vocal fold model

The quality and timbre of disordered voices heavily rely on the vibration properties vocal folds. We discuss representation sagittal phase differences in fold oscillations through a numerical biomechanical model involving lumped elements as well distributed elements, i.e., delay lines. A dynamic glottal source is proposed which displacement along vertical dimensions modelled using In contrast to other models, with reproduction impossible (e.g., two-mass models) or not easy control 3D 16-mass multi-mass models general), one here provides direct over amount between folds’ at posterior anterior part glottis, axis, superior inferior while keeping simple computationally efficient. assessed by addressing oscillatory patterns observed high-speed videoendoscopic data, are observed. Also, timing asymmetry parameters hemi area waveforms (GAWs) used for fitting.