Interspeech'2005 - Eurospeech

Lisbon, Portugal
September 4-8, 2005

Stylization of Glottal-Flow Spectra Produced by a Mechanical Vocal-Fold Model

Denisse Sciamarella, Christophe d'Alessandro

LIMSI-CNRS, Orsay, France

A method is proposed to extract glottal-flow spectra from numerical simulations of vocal-fold behavior with a two-mass model including dynamic flow separation. The numerical spectrum, whose general form complies with that of signal glottal-flow models, allows stylization with three linear segments. The slope of the first segment remains relatively constant when source control parameters are varied, whereas the slope of the last segment (i.e. the spectral tilt) is highly sensitive to the vibrating vocal-fold mass, tension and stiffness. The phase of mobility of the flow separation position within the glottal cycle may introduce, if long enough, a dip in the glottal-flow spectrum.

Full Paper

Bibliographic reference.  Sciamarella, Denisse / d'Alessandro, Christophe (2005): "Stylization of glottal-flow spectra produced by a mechanical vocal-fold model", In INTERSPEECH-2005, 2149-2152.