Physiology of Speech/Voice Production

Abstract

Aims:This study looks at the pathological disorders analysis from speech signals. She presents the effectiveness of the few parameters of the glottal source and these moments of closure for the diagnosis of the Parkinson's disease. Study Design: This analysis is performed around the Czech database that contains many recordings were divided between PD and healthy control (HC). More than 68 subjects are used where each speaker pronounce the sustained vowel [a] in normal intonation. Methodology: Several researchers are trying to produce objective measures to diagnose Parkinson's disease or to act as an objective tool to assist in its decision-making by measuring some vocal parameters. In this study, we studied the hyper nasality of PD and HC using acoustic analyzes. Results:The results presented in this study indicate that speech related symptoms of PD are evident in the glottal flow signal. Particularly notable results were recorded for the glottal parameters, with the correlations found between the measurements and the deviations of the Original Research Article

Model for phonetic changes driven by social interactions

“…Oral communication, as the process of transmitting concepts and ideas from one individual to another by word of mouth, has been a main feature of human kind since the first primitive societies. Historically, research in this field has been faced by anthropologists and linguistics, however, in the last years the interest for the development of new technologies related to automatic speech recognition, specially in artificial intelligent systems [3], has made it an active multidisciplinary area of research [36,14,13,32].…”