Modulation Spectra Morphological Parameters: A New Method to Assess Voice Pathologies according to the GRBAS Scale
Joint Authors
Moro-Velázquez, Laureano
Gómez-García, Jorge Andrés
Godino-Llorente, Juan Ignacio
Andrade-Miranda, Gustavo
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-18
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Disordered voices are frequently assessed by speech pathologists using perceptual evaluations.
This might lead to problems caused by the subjective nature of the process and due to the influence of external factors which compromise the quality of the assessment.
In order to increase the reliability of the evaluations, the design of automatic evaluation systems is desirable.
With that in mind, this paper presents an automatic system which assesses the Grade and Roughness level of the speech according to the GRBAS perceptual scale.
Two parameterization methods are used: one based on the classic Mel-Frequency Cepstral Coefficients, which has already been used successfully in previous works, and other derived from modulation spectra.
For the latter, a new group of parameters has been proposed, named Modulation Spectra Morphological Parameters: MSC, DRB, LMR, MSH, MSW, CIL, PALA, and RALA.
In methodology, PCA and LDA are employed to reduce the dimensionality of feature space, and GMM classifiers to evaluate the ability of the proposed features on distinguishing the different levels.
Efficiencies of 81.6% and 84.7% are obtained for Grade and Roughness, respectively, using modulation spectra parameters, while MFCCs performed 80.5% and 77.7%.
The obtained results suggest the usefulness of the proposed Modulation Spectra Morphological Parameters for automatic evaluation of Grade and Roughness in the speech.
American Psychological Association (APA)
Moro-Velázquez, Laureano& Gómez-García, Jorge Andrés& Godino-Llorente, Juan Ignacio& Andrade-Miranda, Gustavo. 2015. Modulation Spectra Morphological Parameters: A New Method to Assess Voice Pathologies according to the GRBAS Scale. BioMed Research International،Vol. 2015, no. 2015, pp.1-13.
https://search.emarefa.net/detail/BIM-1054790
Modern Language Association (MLA)
Moro-Velázquez, Laureano…[et al.]. Modulation Spectra Morphological Parameters: A New Method to Assess Voice Pathologies according to the GRBAS Scale. BioMed Research International No. 2015 (2015), pp.1-13.
https://search.emarefa.net/detail/BIM-1054790
American Medical Association (AMA)
Moro-Velázquez, Laureano& Gómez-García, Jorge Andrés& Godino-Llorente, Juan Ignacio& Andrade-Miranda, Gustavo. Modulation Spectra Morphological Parameters: A New Method to Assess Voice Pathologies according to the GRBAS Scale. BioMed Research International. 2015. Vol. 2015, no. 2015, pp.1-13.
https://search.emarefa.net/detail/BIM-1054790
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1054790