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Atchayaram Nalini

6 accepted papers

2024

Spectral Analysis of Vowels and Fricatives at Varied Levels of Dysarthria Severity for Amyotrophic Lateral Sclerosis

Chowdam Venkata Thirumala Kumar, Tanuka Bhattacharjee, Seena Vengalil, Saraswati Nashi, Madassu Keerthipriya, Yamini Belur +2
ICASSP 2024accepted

Dysarthria due to Amyotrophic Lateral Sclerosis (ALS) affects the acoustic characteristics of different speech sounds. The effects intensify with increasing severity leading to the collapse of the acoustic space of the affected individuals. With an aim to characterize such changes in the acoustic sp…

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2023

Exploring the Role of Fricatives in Classifying Healthy Subjects and Patients with Amyotrophic Lateral Sclerosis and Parkinson's Disease

Tanuka Bhattacharjee, Yamini Belur, Atchayaram Nalini, Ravi Yadav, Prasanta Kumar Ghosh
ICASSP 2023accepted

Dysarthria due to Amyotrophic Lateral Sclerosis (ALS) and Parkinson’s Disease (PD) impairs sustained phoneme productions. Vowels and fricatives get affected differently owing to the differences in their production mechanisms. This paper examines three sustained voiceless fricatives - /s/, /sh/ and /…

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2023

Static and Dynamic Source and Filter Cues for Classification of Amyotrophic Lateral Sclerosis Patients and Healthy Subjects

Tanuka Bhattacharjee, Chowdam Venkata Thirumala Kumar, Yamini Belur, Atchayaram Nalini, Ravi Yadav, Prasanta Kumar Ghosh
ICASSP 2023accepted

Dysarthria due to Amyotrophic Lateral Sclerosis (ALS) affects speech production. Even the elementary sustained vowel utterances get impaired. For these, the impairments can be in achieving vowel-specific articulatory configurations, reflected in static acoustic cues, and/or in sustaining a configura…

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2021

Acoustic-to-Articulatory Inversion for Dysarthric Speech by Using Cross-Corpus Acoustic-Articulatory Data

Sarthak Kumar Maharana, Aravind Illa, Renuka Mannem, Yamini Belur, Preetie Shetty, Preethish-Kumar Veeramani +4
ICASSP 2021accepted

In this work, we focus on estimating articulatory movements from acoustic features, known as acoustic-to-articulatory inversion (AAI), for dysarthric patients with amyotrophic lateral sclerosis (ALS). Unlike healthy subjects, there are two potential challenges involved in AAI on dysarthric speech. D…

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2020

Voice based classification of patients with Amyotrophic Lateral Sclerosis, Parkinson's Disease and Healthy Controls with CNN-LSTM using transfer learning

Jhansi Mallela, Aravind Illa, Suhas B. N., Sathvik Udupa, Yamini Belur, Atchayaram Nalini +4
ICASSP 2020accepted

In this paper, we consider 2-class and 3-class classification problems for classifying patients with Amyotrophic Lateral Sclerosis (ALS), Parkinson's Disease (PD), and Healthy Controls (HC) using a CNNLSTM network. Classification performance is examined for three different tasks, namely, Spontaneous…

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2018

Comparison of Speech Tasks for Automatic Classification of Patients with Amyotrophic Lateral Sclerosis and Healthy Subjects

Aravind Illa, Deep Patel, B. K. Yamini, Meera SS, N. Shivashankar, Preethish-Kumar Veeramani +5
ICASSP 2018accepted

In this work, we consider the task of acoustic and articulatory feature based automatic classification of Amyotrophic Lateral Sclerosis (ALS) patients and healthy subjects using speech tasks. In particular, we compare the roles of different types of speech tasks, namely rehearsed speech, spontaneous…

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