# Augmenting Dysarthric Speech Severity Assessment with MOS Supervision

Source: [Augmenting Dysarthric Speech Severity Assessment with MOS Supervision](<https://www.sota2.com/research/paper/6a337bbc206542251d7c5184>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2026-06-19T05:00:13.460Z

Authors: Kaimeng Jia, Minzhu Tu, Zengrui Jin, Siyin Wang, Chao Zhang

Published: 2026-06-17T03:29:40.000Z

## Abstract

Dysarthria is a speech disorder marked by reduced intelligibility and communicative effectiveness. Automatic utterance-level assessment of dysarthric speech can support scalable speech monitoring and therapy-related analysis. Yet training such systems is bottlenecked by the scarcity of clinically annotated dysarthric speech. This work proposes to augment dysarthric speech assessment using data from speech synthesis evaluations, specifically human-annotated utterances with Mean Opinion Score (MOS) labels from the QualiSpeech corpus. Experiments show that fine-tuning on speech synthesis assessment data consistently improves performance on both intelligibility and naturalness prediction, while joint training yields gains primarily on naturalness. These results suggest that synthesis artifacts and dysarthric speech share perceptual commonalities, and speech synthesis evaluation corpora offer a practical augmentation source that reduces reliance on scarce clinical annotations.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

- [Dysarthric Speech Intelligibility Assessment on SAP](<https://www.sota2.com/research/sota/dysarthric-speech-intelligibility-assessment-on-sap.md>): Dysarthric Speech Intelligibility Assessment; SAP (Speech Accessibility Project); MSE: 0.272.

- [Dysarthric Speech Naturalness Assessment on SAP (Speech Accessibility Project)](<https://www.sota2.com/research/sota/dysarthric-speech-naturalness-assessment-on-sap-speech-accessibility-project.md>): Dysarthric Speech Naturalness Assessment; SAP (Speech Accessibility Project); MSE: 0.717.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2606.18645>)

[PDF](<https://arxiv.org/pdf/2606.18645.pdf>)