Flow ball-assisted voice training: immediate effects on vocal fold contacting

Filipa M.B., Lã y Ternström, Sten . (2020) Flow ball-assisted voice training: immediate effects on vocal fold contacting. Biomedical Signal Processing and Control, Volume 62, 2020, 102064

Ficheros (Some files may be inaccessible until you login with your e-spacio credentials)
Nombre Descripción Tipo MIME Size
MARTINS_BAPTISTA_LA_Flow-ball_assisted_voice.pdf MARTINS_BAPTISTA_LA_Flow-ball_assisted_voice.pdf application/pdf 778.58KB

Título Flow ball-assisted voice training: immediate effects on vocal fold contacting
Autor(es) Filipa M.B., Lã
Ternström, Sten
Materia(s) Educación
Música
Abstract Objective Effects of exercises using a tool that promotes a semi-occluded artificially elongated vocal tract with real-time visual feedback of airflow – the flow ball – were tested using voice maps of EGG time-domain metrics. Methods Ten classically trained singers (5 males and 5 females) were asked to sing messa di voce exercises on eight scale tones, performed in three consecutive conditions: baseline (‘before’), flow ball phonation (‘during’), and again without the flow ball (‘after’). These conditions were repeated eight times in a row: one scale tone at a time, on an ascending whole tone scale. Audio and electroglottographic signals were recorded using a Laryngograph microprocessor. Vocal fold contacting was assessed using three time-domain metrics of the EGG waveform, using FonaDyn. The quotient of contact by integration, Qci, the normalized peak derivative, QΔ, and the index of contacting Ic, were quantified and compared between ‘before’ and ‘after’ conditions. Results Effects of flow ball exercises depended on singers’ habitual phonatory behaviours and on the position in the voice range. As computed over the entire range of the task, Qci was reduced by about 2% in five of ten singers. QΔ was 2–6% lower in six of the singers, and 3–4% higher only in the two bass-baritones. Ic decreased by almost 4% in all singers. Conclusion Overall, vocal adduction was reduced and a gentler vocal fold collision was observed for the ‘after’ conditions. Significance Flow ball exercises may contribute to the modification of phonatory behaviours of vocal pressedness.
Palabras clave Flow ball
Semi-occluded vocal tract
Vocal fold contacting
FonaDyn
Editor(es) Elsevier
Fecha 2020-09-01
Formato application/pdf
Identificador bibliuned:425-Lfilipa-0033
http://e-spacio.uned.es/fez/view/bibliuned:425-Lfilipa-0033
DOI - identifier https://doi.org/10.1016/j.bspc.2020.102064
ISSN - identifier 1746-8094
Nombre de la revista Biomedical Signal Processing and Control
Número de Volumen 62
Publicado en la Revista Biomedical Signal Processing and Control, Volume 62, 2020, 102064
Idioma eng
Versión de la publicación acceptedVersion
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
Tipo de acceso Acceso abierto
Notas adicionales This is the Accepted Manuscript of an article published by Elsevier in "Biomedical Signal Processing and Control" on Sep 2020, available online: https://doi.org/10.1016/j.bspc.2020.102064
Notas adicionales Este es el manuscrito aceptado de un artículo publicado por Elsevier en "Biomedical Signal Processing and Control" en Sep 2020, disponible en línea: https://doi.org/10.1016/j.bspc.2020.102064

 
Versiones
Versión Tipo de filtro
Contador de citas: Google Scholar Search Google Scholar
Estadísticas de acceso: 47 Visitas, 12 Descargas  -  Estadísticas en detalle
Creado: Tue, 12 Dec 2023, 19:03:46 CET