Estimation des dyspériodicités vocales dans la parole connectée dysphonique
Abdellah Kacha, Francis Grenez, Jean Schoentgen.
Acoustic analysis of connected speech is carried out by means of a generalized variogram to extract vocal dysperiocities. A segmental signal-to-dysperiodicity ratio is used to summarize the perceived degree of hoarseness. The corpora comprise four French sentences as well as vowels [a] produced by 22 male and female normophonic and dysphonic speakers. It is shown that the segmental signal-to-dysperiodicity ratio correlates better with perceptual scores of hoarseness than the global signal-to-dysperiodicity ratio. The perceptual scores are based on comparative judgments by six listeners of pairs of speech stimulus.