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A method for measurement of the vocal tract impedance at the mouth

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Title: A method for measurement of the vocal tract impedance at the mouth
Authors: Kob, Malte1 mkob@ukaachen.de, Neuschaefer-Rube, Christiane2
Source: Medical Engineering & Physics. Sep2002, Vol. 24 Issue 7/8, p467. 5p.
Subjects: Acoustic impedance, Voice disorders
Abstract: In this contribution a method is presented for the measurement of vocal tract resonances. The technique uses a non-invasive acoustic excitation of the vocal tract and a fast and robust detection. The method is an alternative to the linear predictive coding (LPC) analysis for patients with voice and speech disorders. Sweep signals are emitted and recorded simultaneously from the small end of a tube placed in front of the mouth opening. The use of a pressure sensor and a velocity sensor provides a direct measurement of the vocal tract impedance at the mouth (VTMI). For selected sustained German vowels, and some consonants, a comparison of results from LPC analysis and VTMI measurements is given. The results indicate a good agreement in the frequency range from 500 to 5000 Hz. The feasibility of the VTMI method for diagnostic and therapeutic applications is subject to current research. [Copyright &y& Elsevier]
Copyright of Medical Engineering & Physics is the property of Elsevier B.V. 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: Engineering Source
FullText Text:
  Availability: 0
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DbLabel: Engineering Source
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PubType: Academic Journal
PubTypeId: academicJournal
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IllustrationInfo
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  Data: A method for measurement of the vocal tract impedance at the mouth
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  Data: <searchLink fieldCode="AR" term="%22Kob%2C+Malte%22">Kob, Malte</searchLink><relatesTo>1</relatesTo><i> mkob@ukaachen.de</i><br /><searchLink fieldCode="AR" term="%22Neuschaefer-Rube%2C+Christiane%22">Neuschaefer-Rube, Christiane</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Medical+Engineering+%26+Physics%22">Medical Engineering & Physics</searchLink>. Sep2002, Vol. 24 Issue 7/8, p467. 5p.
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  Data: <searchLink fieldCode="DE" term="%22Acoustic+impedance%22">Acoustic impedance</searchLink><br /><searchLink fieldCode="DE" term="%22Voice+disorders%22">Voice disorders</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this contribution a method is presented for the measurement of vocal tract resonances. The technique uses a non-invasive acoustic excitation of the vocal tract and a fast and robust detection. The method is an alternative to the linear predictive coding (LPC) analysis for patients with voice and speech disorders. Sweep signals are emitted and recorded simultaneously from the small end of a tube placed in front of the mouth opening. The use of a pressure sensor and a velocity sensor provides a direct measurement of the vocal tract impedance at the mouth (VTMI). For selected sustained German vowels, and some consonants, a comparison of results from LPC analysis and VTMI measurements is given. The results indicate a good agreement in the frequency range from 500 to 5000 Hz. The feasibility of the VTMI method for diagnostic and therapeutic applications is subject to current research. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Medical Engineering & Physics is the property of Elsevier B.V. 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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      – Type: doi
        Value: 10.1016/S1350-4533(02)00062-0
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      – Code: eng
        Text: English
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      – TitleFull: A method for measurement of the vocal tract impedance at the mouth
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              M: 09
              Text: Sep2002
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              Y: 2002
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