LARYNX 1997 Marseille, France June 16-18, 1997

Software System for Pathological Voice Analysis

B. Boyanov (1), S. Hadjitodorov (1), Bernard Teston (2), D. Doskov (3)

(1) Center on Biomedical Engineering, Sofia, Bulgaria
(2) Lab. "Parole et Language", URA 261 CNRS, Aix en Provence, France
(3) Phoniatric Dep. Univ. Hospital "Queen Jovanna " Sofia, Bulgaria

A software system (SSPVA) for pathological voice analysis using only the resources of a personal computer is proposed. The SSPVA is written on the basis of specific methods and algorithms for pathological voice analysis and allows evaluation of: 1) Pitch period (To); 2) Degree of unvoiceness; 3) Pitch perturbation and amplitude perturbation quotients; 4) Degree of stability of To generation; 5) Degree of dissimilarity of the shapes of pitch pulses; 6) Ratio {energy in the cepstral pitch pulse}-to-{total cepstral energy}; 7) Harmonics-to-noise ratio; 8) Degree of hoarseness; 9) Ratio low-to-high frequency energies; 10) Glottal amplitude quotient.

Full Paper

Bibliographic reference.  Boyanov, B. / Hadjitodorov, S. / Teston, Bernard / Doskov, D. (1997): "Software system for pathological voice analysis", In LARYNX-1997, 139-142.