Formants frequency and dispersion in relation to the length and projection of the upper and lower jaws

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dc.contributor.authorMacari, Anthony T.
dc.contributor.authorKaram, Ingrid A.
dc.contributor.authorTabri, Dollen
dc.contributor.authorSarieddine, Doja S.
dc.contributor.authorHamdan, Abdul Latif H.
dc.contributor.departmentOtolaryngology/Head and Neck Surgery
dc.contributor.facultyFaculty of Medicine (FM)
dc.contributor.institutionAmerican University of Beirut
dc.date.accessioned2025-01-24T12:09:19Z
dc.date.available2025-01-24T12:09:19Z
dc.date.issued2015
dc.description.abstractObjective Investigate the association between formants frequencies and length and sagittal projection of the maxilla and mandible. Study Design Cross-sectional study. Method A total of 47 consecutive patients were recruited. Craniofacial measures included; maxillary length (ANS-PNS), mandibular length (Co-Gn), relationship between maxilla and mandible in the sagittal plane (ANB), the sagittal projection of the maxilla (SNA), and mandible (SNB). Subjects were asked to phonate vowels /a/, /i/, /o/, and /u/. Measurements were made in real-time and formant frequencies across F1, F2, F3, and F4 were determined. Results There was a significant negative association between the length of the maxilla and F4 for all the vowels, and a significant negative association between the length of the mandible and F4 for vowels /o/ and /u/. The length of maxilla and mandible also negatively associated with F3 for vowels /a/, /i/, /o/, and vowels /i/, /o/, and /u/ respectively. For the first two formants, the negative association was less pronounced. Conclusion There was a significant negative association between the formant frequencies F3, F4, and the length of the mandible and maxilla for vowels /a/, /i/, /o/, and /u/. © 2015 The Voice Foundation.
dc.identifier.doihttps://doi.org/10.1016/j.jvoice.2014.05.011
dc.identifier.eid2-s2.0-84920621774
dc.identifier.pmid25499522
dc.identifier.urihttp://hdl.handle.net/10938/31995
dc.language.isoen
dc.publisherMosby Inc.
dc.relation.ispartofJournal of Voice
dc.sourceScopus
dc.subjectFormants frequencies
dc.subjectMandible
dc.subjectMaxilla
dc.subjectAdolescent
dc.subjectAdult
dc.subjectChild
dc.subjectCross-sectional studies
dc.subjectFemale
dc.subjectHumans
dc.subjectMale
dc.subjectSpeech acoustics
dc.subjectVoice
dc.subjectYoung adult
dc.subjectArticle
dc.subjectClinical article
dc.subjectControlled study
dc.subjectCross-sectional study
dc.subjectDispersion
dc.subjectFormants dispersion
dc.subjectFormants frequency
dc.subjectHuman
dc.subjectMalocclusion
dc.subjectMeasurement
dc.subjectMusculoskeletal system parameters
dc.subjectOrthodontics
dc.subjectPhonetics
dc.subjectSex difference
dc.subjectTime
dc.subjectVowel
dc.subjectAnatomy and histology
dc.subjectPhysiology
dc.subjectSpeech
dc.titleFormants frequency and dispersion in relation to the length and projection of the upper and lower jaws
dc.typeArticle

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