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Glottal airflow and glottal area waveform characteristics of flow phonation in untrained vocally healthy adults

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dc.contributor.authorPatel, Rita R.
dc.contributor.authorSundberg, Johan
dc.contributor.authorGill, Brian P.
dc.contributor.authorFilipa M.B., Lã
dc.date.accessioned2024-05-20T11:22:19Z
dc.date.available2024-05-20T11:22:19Z
dc.date.issued2022-01
dc.description.abstractObjective To examine flow phonation characteristics with regard to vocal fold vibration and voice source properties in vocally healthy adults using multimodality voice measurements across various phonation types (breathy, neutral, flow, and pressed) and loudness conditions (typical, loud, and soft). Participants and Methods Vocal fold vibration, airflow, acoustic, and subglottal pressure was analyzed in 13 untrained voices (six female and seven male). Participants repeated the syllable / pæ:/ using breathy, neutral, flow, and pressed phonation during typical, loud, and soft loudness conditions. Glottal area (GA) waveforms were extracted from high-speed videoendoscopy; glottal flow was derived from inverse filtering the airflow or the audio signal; and subglottal pressure was measured as the intraoral pressure during /p/ occlusion. Results Changes in phonation type and loudness conditions resulted in systematic variations across the relative peak closing velocity derived from the GA waveform for both males and females. Amplitude quotient derived from the flow glottogram varied across phonation types for males. Conclusion Multimodality evaluation using the GA waveform and the inverse filtered waveforms revealed a complex pattern that varied as a function of phonation types and loudness conditions across males and females. Emerging findings from this study suggests that future large-scale studies should focus on spatial and temporal features of closing speed and closing duration for differentiating flow phonation from other phonation types in untrained adults with and without voice disorders.en
dc.description.versionversión final
dc.identifier.doihttps://doi.org/10.1016/j.jvoice.2020.07.037
dc.identifier.issn0892-1997
dc.identifier.urihttps://hdl.handle.net/20.500.14468/11822
dc.journal.issue1
dc.journal.titleJournal of Voice
dc.journal.volume36
dc.language.isoen
dc.publisherElsevier
dc.relation.centerFacultad de Educación
dc.relation.departmentDidáctica, Organización Escolar y Didácticas Especiales
dc.rightsAtribución-NoComercial-SinDerivadas 4.0 Internacional
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subject.keywordsFlow phonation
dc.subject.keywordsHigh-speed videoendoscopy
dc.subject.keywordsGlottal area waveform
dc.subject.keywordsInverse filtering
dc.titleGlottal airflow and glottal area waveform characteristics of flow phonation in untrained vocally healthy adultses
dc.typeartículoes
dc.typejournal articleen
dspace.entity.typePublication
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