A software system for pathological voice acoustic analysis

B. Boyanov (1) , B. Teston (2) , S. Hadjitodorov (1) , P. Mitev (1) , D. Donskov (3)

1 Centre of Biomedical Engineering
2 LPL - Laboratoire Parole et Langage
3 Phoniatric Department

A software system for pathological voice analysis using only the resources of a personal computer with a sound card is proposed. The system 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) Dissimilarity of surfaces of the pitch pulses; 5) Ratio aperiodic/periodic components in cepstra; 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 Closing Quotient. The voices of 400 persons were analyzed - 100 (50 females/50 males) normal speakers and 300 (100 females/200 males) patients. The statistical analysis shows very significant changes in PPQ, DH, DPP, DUV, APR, HNR and PECM, and significant changes in APQ and CQ.

Mots clés: Voice assessment; dysphonia

Domaines: Génie logiciel [cs.SE]; Ingénierie biomédicale; Médecine humaine et pathologie; Linguistique

B. Boyanov, B. Teston, S. Hadjitodorov, P. Mitev, D. Donskov. A software system for pathological voice acoustic analysis. IMEKO Measurement in biology and medecine, Sep 1998, Dubrovnik, Croatia. pp.125-128. ⟨hal-00370249⟩