Распознавание дизартричной речи по фонемам с использованием скрытых марковских моделей
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Научный журнал Моделирование, оптимизация и информационные технологииThe scientific journal Modeling, Optimization and Information Technology
Online media
issn 2310-6018

Dysarthria speech recognition by phonemes using hidden Markov models

idBredikhin B.A. idAntor M. Khlebnikov N.A.   Melnikov A.V.   Bachurin M.V.  

UDC 004.852
DOI: 10.26102/2310-6018/2024.44.1.002

  • Abstract
  • List of references
  • About authors

The relevance of the paper is due to the difficulties of oral interaction between people with speech disorders and normotypic interlocutors as well as the low quality of abnormal speech recognition by standard speech recognition systems and the inability to create a system capable of processing any speech disorders. In this regard, this article is aimed at developing a method for automatic recognition of dysarthric speech using a pre-trained neural network for recognizing phonemes and hidden Markov models for converting phonemes into text and subsequent correction of recognition results using a search in the space of acceptable words of the nearest Levenshtein word and a dynamic algorithm for splitting the output of the model into separate words. The main advantage of using hidden Markov models in comparison with neural networks is the small size of the training data set collected individually for each user, as well as the ease of training the model further in case of progressive speech disorders. The data set for model training is described, and recommendations for collecting and marking data for model training are given. The effectiveness of the proposed method is tested on an individual data set recorded by a person with dysarthria; the recognition quality is compared with neural network models trained on the data set used. The materials of the article are of practical value for creating an augmented communication system for people with speech disorders.

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Bredikhin Boris Andreevich

ORCID | eLibrary |

Ural Federal University

Yekaterinburg, the Russian Federation

Antor Mahamudul


Ural Federal University

Yekaterinburg, the Russian Federation

Khlebnikov Nikolay Aleksandrovich
Candidate of Chemical Sciences

Ural Federal University

Yekaterinburg, the Russian Federation

Melnikov Aleksandr Valerievich

Ural Federal University

Yekaterinburg, thet Russian Federation

Bachurin Matvey Vladimirovich

Ural Federal University

Yekaterinburg, the Russian Federation

Keywords: hidden Markov models, dysarthria, automatic speech recognition, phonemes recognition, phoneme correction

For citation: Bredikhin B.A. Antor M. Khlebnikov N.A. Melnikov A.V. Bachurin M.V. Dysarthria speech recognition by phonemes using hidden Markov models. Modeling, Optimization and Information Technology. 2024;12(1). Available from: https://moitvivt.ru/ru/journal/pdf?id=1471 DOI: 10.26102/2310-6018/2024.44.1.002 (In Russ).


Full text in PDF

Received 02.11.2023

Revised 04.12.2023

Accepted 17.01.2024

Published 22.01.2024