fulltext.study @t Gmail

Fully automated speaker identification and intelligibility assessment in dysarthria disease using auditory knowledge

Paper ID Volume ID Publish Year Pages File Format Full-Text
5125 341 2016 15 PDF Available
Title
Fully automated speaker identification and intelligibility assessment in dysarthria disease using auditory knowledge
Abstract

Millions of children and adults suffer from acquired or congenital neuro-motor communication disorders that can affect their speech intelligibility. The automatically characterization of speech impairment can contribute to improve the patient's life quality, and assist experts in assessment and treatment design. In this paper, we present new approaches to improve the analysis and classification of disordered speech. First, we propose an automatic speaker recognition approach especially adapted to identify dysarthric speakers. Secondly, we suggest a method for the automatic assessment of the dysarthria severity level. For this purpose, a model simulating the external, middle and inner parts of the ear is presented. This ear model provides relevant auditory-based cues that are combined with the usual Mel-Frequency Cepstral Coefficients (MFCC) to represent atypical speech utterances. The experiments are carried out by using data of both Nemours and Torgo databases of dysarthric speech. Gaussian Mixture Models (GMMs), Support Vector Machines (SVMs) and hybrid GMM/SVM systems are tested and compared in the context of dysarthric speaker identification and assessment. The experimental results achieve a correct speaker identification rate of 97.2% which can be considered promising for this novel approach; also the existing assessment systems are outperformed with a 93.2% correct classification rate of dysarthria severity levels.

Keywords
Dysarthria; Speech processing; Auditory cues; GMM; SVM; Hybrid GMM/SVM
First Page Preview
Fully automated speaker identification and intelligibility assessment in dysarthria disease using auditory knowledge
Publisher
Database: Elsevier - ScienceDirect
Journal: Biocybernetics and Biomedical Engineering - Volume 36, Issue 1, 2016, Pages 233–247
Authors
, , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering