The presentation concerns a synthesizer for disordered voices. The simulation of dysphonia is a topic the relevance of which is growing, but to which few studies have been devoted. The simulator that is discussed here involves a nonlinear memory-less model of the glottal area that is driven by a harmonic excitation the instantaneous frequency and amplitude of which are controlled. The glottal airflow rate is generated by means of an aerodynamic model of the glottis, which also comprises trachea-source and source-tract interactions as well as the generation of turbulence noise at the glottis. Trachea and vocal tract are modelled by means of a concatenation of lossy cylindrical pipes of identical length, but different cross-sections. The text concerns the presentation of the synthesizer and its synthetic output, as well as the results of a perceptual evaluation of the naturalness of simulated speech sounds in the framework of a stimuli comparison paradigm.
Cite as: Fraj, S.B.E., Grenez, F., Schoentgen, J. (2007) Towards the simulation of pathological voice qualities. Proc. Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2007), 3-6
@inproceedings{fraj07_maveba,
author={S. Ben Elhadj Fraj and Francis Grenez and Jean Schoentgen},
title={{Towards the simulation of pathological voice qualities}},
year=2007,
booktitle={Proc. Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2007)},
pages={3--6}
}