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Advisor(s)
Abstract(s)
A new procedure for automatic diagnosis of pathologies of the larynx is presented. The new procedure has the advantage over other traditional techniques of being non-invasive, inexpensive and objective. The algorithms for determination of jitter and shimmer parameters by their Jitta, Jitt, RAP, ppq5 in case of jitter and Shim, SHDB, apq3 and apq5 in case of shimmer are presented. The algorithm developed and implemented for determining the HNR (Harmonic to Noise Ratio) are also presented. The developed tools allow the diagnosis that indicates whether or not the voice is pathologic.
Description
Keywords
Fundamental frequency Speech jitter Speech shimmer Harmonic to noise ratio Larynx pathologies
Citation
Teixeira, João Paulo; Oliveira, Carla; Lopes, Carla (2013). Vocal acoustic analysis - jitter, shimmer and HNR parameters. Procedia Technology. Elsevier. 9, p. 1112-1122
Publisher
Elsevier