par Kacha, Abdellah 
;Grenez, Francis ;Schoentgen, Jean
Référence Biomedical Signal Processing and Control, 1, 2, page (137-143)
Publication Publié, 2006
;Grenez, Francis ;Schoentgen, Jean Référence Biomedical Signal Processing and Control, 1, 2, page (137-143)
Publication Publié, 2006
Article révisé par les pairs
| Résumé : | Two variants of multiband segmental signal-to-dysperiodicity ratio are used to summarize vocal dysperiodicities in connected disordered speech and their performance is compared to that of the conventional global signal-to-dysperiodicity ratio. Acoustic analysis is carried out by means of a generalized variogram to extract vocal dysperiodicities. The corpus comprises four French sentences as well as vowels [a] produced by 22 male and female normophonic and dysphonic speakers. It is shown that the multiband signal-to-dysperiodicity ratios correlate better with perceptual scores of hoarseness than the global signal-to-dysperiodicity ratio. The highest correlations are achieved by the acoustic marker based on linear regression analysis of the segmental signal-to-dysperiodiciy ratios in different non-overlapping frequency bands. The perceptual scores are based on comparative judgments by six listeners of pairs of speech tokens. © 2006 Elsevier Ltd. All rights reserved. |
