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A comparison of different methods to measure the EGG contact quotient
KTH, School of Computer Science and Communication (CSC), Speech, Music and Hearing, TMH, Music Acoustics. (Musikakustik)ORCID iD: 0000-0002-3362-7518
2006 (English)In: Logopedics, Phoniatrics, Vocology, ISSN 1401-5439, E-ISSN 1651-2022, Vol. 31, no 3, 126-138 p.Article in journal (Refereed) Published
Abstract [en]

The results from six published electroglottographic (EGG-based) methods for calculating the EGG contact quotient (CQEGG) were compared to closed quotients derived from simultaneous videokymographic imaging (CQKYM). Two trained male singers phonated in falsetto and in chest register, with two degrees of adduction in both registers. The maximum difference between methods in the CQEGG was 0.3 (out of 1.0). The CQEGG was generally lower than the CQKYM. Within subjects, the CQEGG co-varied with the CQkym, but with changing offsets depending on method. The CQEGG cannot be calculated for falsetto phonation with little adduction, since there is no complete glottal closure. Basic criterion-level methods with thresholds of 0.2 or 0.25 gave the best match to the CQKYM data. The results suggest that contacting and de-contacting in the EGG might not refer to the same physical events as do the beginning and cessation of airflow.

Place, publisher, year, edition, pages
Informa Healthcare, 2006. Vol. 31, no 3, 126-138 p.
National Category
Medical Laboratory and Measurements Technologies Otorhinolaryngology Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-51781PubMedID: 16966155Scopus ID: 2-s2.0-33748562827OAI: oai:DiVA.org:kth-51781DiVA: diva2:465076
Note

tmh_import_11_12_14. QC 20120112 QC 20150731

Available from: 2011-12-14 Created: 2011-12-14 Last updated: 2017-12-08Bibliographically approved

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Ternström, Sten

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CiteExportLink to record
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  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
  • html
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