Evidence of Glottal Source Spectral Features found in Vocal Fold Dynamics

Abstract

Pathology detection methods in vocal cords using the voice may benefit from the detection of the time and frequency patterns of the mucosal wave correlate. A description of the vocal folds is given in terms of the most relevant features related to vocal fold pathology in reference to the body-cover models of 2- and k-masses. A description of the mucosal wave correlate as the residual small-amplitude vibration when removing the body influence in the glottal aperture is given. The main features of the mucosal wave correlate are examined. Finally, a parameterization method based on this study and its possible applications to speech pathology detection are discussed.