Work

Inter-speaker acoustic differences of sustained vowels at varied dysarthria severities for amyotrophic lateral sclerosis

Year: 2024

Type: article

Abstract: We study inter-speaker acoustic differences during sustained vowel utterances at varied severities of Amyotrophic Lateral Sclerosis-induced dysarthria. Among source attributes, jitter and standard deviation of fundamental frequency exhibit enhanced inter-speaker differences among patients than healthy controls (HCs) at all severity levels. Though inter-speaker differences in vocal tract filter attributes at most severity levels are higher than those among HCs for close vowels /i/ and /u/, these are comparable with or lower than those among HCs for the relatively more open vowels /a/ and /o/. The differences typically increase with severity except for a few parameters for /a/ and /i/.

Source: JASA Express Letters

DOI: 10.1121/10.0034613

Authors: Tanuka Bhattacharjee, Seena Vengalil, Yamini Belur, Nalini Atchayaram, Prasanta Kumar Ghosh

Institutions: Indian Institute of Science Bangalore, National Institute of Mental Health and Neurosciences

Language: English

Topic: Voice and Speech Disorders

Subfield: Physiology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

Funder: Department of Science and Technology, Ministry of Science and Technology, India