| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 1.21 MB | Adobe PDF |
Advisor(s)
Abstract(s)
This paper presents a comparison between the spectral analysis of the voices from patients diagnosed with bulbar amyotrophic lateral sclerosis (ALS) and healthy speakers. The main objective is to understand how this disease affects the voice and, consequently, the spectrum of the patients' voices. The spectrum is analysed in three energy bands, where energy peaks are estimated and the tilt between these bands is computed. The results obtained allow to conclude that the subjects diagnosed with bulbar ALS present significant differences in the mean values and variances of the energy peaks in this bands compared to the healthy speakers and, consequently, in the tilt between bands. The method presented has 85% classification rate without resorting to highly complex classifiers.
Description
Keywords
Spectral energy band Spectral tilt analysis Bulbar ALS screening Voice spectrum
Citation
CORDEIRO, Hugo Tito; RIBEIRO, Carlos Meneses – Voice spectrum energy band and tilt analysis for Bulbar ALS screening. Procedia Computer Science (International Conference on ENTERprise Information Systems (CENTERIS) / International Conference on Project MANagement (ProjMAN) / International Conference on Health and Social Care Information Systems and Technologies (HCist)). ISSN 1877-0509. Vol. 181 (2021), pp. 206-213
Publisher
Elsevier