Recent Advances in Dysarthric Speech Recognition: Approaches and Datasets

Dysarthria is a neuromotor speech disorder that results from physical disability and limits speech intelligibility. Dysarthric speakers can make use of speech recognition systems to help them communicate more effectively with others. This paper surveys the latest works conducted on dysarthric speech recognition that was carried out in a span of five years, specifically from 2018 until 2023. These works are categorized according to the approach that was followed to improve dysarthric speech recognition. The approaches include data augmentation, enhancement of dysarthric speech, speech and acoustic features, adaptation, and hybridization of multiple approaches.