A Critical Evaluation of Gestural Stiffness Estimations in Speech Production Based on a Linear Second-Order Model.
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| Title: | A Critical Evaluation of Gestural Stiffness Estimations in Speech Production Based on a Linear Second-Order Model. |
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| Authors: | Fuchs, Susanne1, Perrier, Pascal2 Pascal.Perrier@gipsa-lab.grenoble-inp.fr, Hartinger, Mariam1, Smith, Anne |
| Source: | Journal of Speech, Language & Hearing Research. Aug2011, Vol. 54 Issue 4, p1067-1076. 10p. 3 Charts, 4 Graphs. |
| Subject Terms: | *Sign language, *Theory, Mathematical models, Research funding, Speech, Statistics |
| Abstract: | Purpose: Linear second-order models have often been used to investigate properties of speech production. However, these models are inaccurate approximations of the speech apparatus. This study aims at assessing how reliably stiffness can be estimated from kinematics with these models. Method: Articulatory movements were collected for 9 speakers of German during the production of reiterant CVCV words at varying speech rates. Velocity peaks, movement amplitudes, and gesture durations were measured. In the context of an undamped model, 2 stiffness estimations were compared that should theoretically yield the same result. In the context of a damped model, gestural stiffness and damping were calculated for each gesture. Results: Numerous cases were found in which stiffness estimations based on the undamped model contradicted each other. Less than 80% of the data were found to be compatible with the properties of the damped model. Stiffness tends to decrease with gestural duration. However, it is associated with a large, unrealistic damping dispersion, making stiffness estimations from kinematic data to a large extent unreliable. Conclusion: Any conclusions about speech control based on stiffness estimations using linear second-order models should therefore be considered with caution. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Speech, Language & Hearing Research is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Education Research Complete |
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| Header | DbId: ehh DbLabel: Education Research Complete An: 64305564 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A Critical Evaluation of Gestural Stiffness Estimations in Speech Production Based on a Linear Second-Order Model. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Fuchs%2C+Susanne%22">Fuchs, Susanne</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Perrier%2C+Pascal%22">Perrier, Pascal</searchLink><relatesTo>2</relatesTo><i> Pascal.Perrier@gipsa-lab.grenoble-inp.fr</i><br /><searchLink fieldCode="AR" term="%22Hartinger%2C+Mariam%22">Hartinger, Mariam</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Smith%2C+Anne%22">Smith, Anne</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Speech%2C+Language+%26+Hearing+Research%22">Journal of Speech, Language & Hearing Research</searchLink>. Aug2011, Vol. 54 Issue 4, p1067-1076. 10p. 3 Charts, 4 Graphs. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Sign+language%22">Sign language</searchLink><br />*<searchLink fieldCode="DE" term="%22Theory%22">Theory</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+models%22">Mathematical models</searchLink><br /><searchLink fieldCode="DE" term="%22Research+funding%22">Research funding</searchLink><br /><searchLink fieldCode="DE" term="%22Speech%22">Speech</searchLink><br /><searchLink fieldCode="DE" term="%22Statistics%22">Statistics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Purpose: Linear second-order models have often been used to investigate properties of speech production. However, these models are inaccurate approximations of the speech apparatus. This study aims at assessing how reliably stiffness can be estimated from kinematics with these models. Method: Articulatory movements were collected for 9 speakers of German during the production of reiterant CVCV words at varying speech rates. Velocity peaks, movement amplitudes, and gesture durations were measured. In the context of an undamped model, 2 stiffness estimations were compared that should theoretically yield the same result. In the context of a damped model, gestural stiffness and damping were calculated for each gesture. Results: Numerous cases were found in which stiffness estimations based on the undamped model contradicted each other. Less than 80% of the data were found to be compatible with the properties of the damped model. Stiffness tends to decrease with gestural duration. However, it is associated with a large, unrealistic damping dispersion, making stiffness estimations from kinematic data to a large extent unreliable. Conclusion: Any conclusions about speech control based on stiffness estimations using linear second-order models should therefore be considered with caution. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Speech, Language & Hearing Research is the property of American Speech-Language-Hearing Association and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1044/1092-4388(2010/10-0131) Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 1067 Subjects: – SubjectFull: Sign language Type: general – SubjectFull: Theory Type: general – SubjectFull: Mathematical models Type: general – SubjectFull: Research funding Type: general – SubjectFull: Speech Type: general – SubjectFull: Statistics Type: general Titles: – TitleFull: A Critical Evaluation of Gestural Stiffness Estimations in Speech Production Based on a Linear Second-Order Model. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Fuchs, Susanne – PersonEntity: Name: NameFull: Perrier, Pascal – PersonEntity: Name: NameFull: Hartinger, Mariam – PersonEntity: Name: NameFull: Smith, Anne IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2011 Type: published Y: 2011 Identifiers: – Type: issn-print Value: 10924388 Numbering: – Type: volume Value: 54 – Type: issue Value: 4 Titles: – TitleFull: Journal of Speech, Language & Hearing Research Type: main |
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