Real-Time Visual Feedback of Airflow in Voice Training: Aerodynamic Properties of Two Flow Ball Devices

Filipa M.B., Lã, Wistbacka, Greta, Amarante Andrade, Pedro y Granqvist, Svante . (2017) Real-Time Visual Feedback of Airflow in Voice Training: Aerodynamic Properties of Two Flow Ball Devices. Journal of Voice, Vol. 31 Issue 3

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Título Real-Time Visual Feedback of Airflow in Voice Training: Aerodynamic Properties of Two Flow Ball Devices
Autor(es) Filipa M.B., Lã
Wistbacka, Greta
Amarante Andrade, Pedro
Granqvist, Svante
Materia(s) Educación
Música
Abstract Objectives. Flow ball devices have been used as teaching tools to provide visual real-time feedback of airflow during singing. This study aims at exploring static back pressure and ball height as function of flow for two devices, marketed as flow ball and floating ball game. Study Design. This is a comparative descriptive study. Methods. A flow-driven vocal tract simulator was used to investigate the aerodynamic properties of these two devices, testing them for four different ball sizes. The flow range investigated was between 0 and 0.5 L/s. Audio, flow, pressure, and ball height were recorded. Results. The flow pressure profiles for both tested devices were similar to those observed in previous studies on narrow tubes. For lifting the ball, both devices had a flow and a pressure threshold. The tested floating ball game required considerably higher back pressure for a given flow as compared with the flow ball. Conclusions. Both tested devices have similar effects on back pressure as straws of 3.7 and 3.0 mm in diameter for the flow ball and the floating ball game, respectively. One might argue that both devices could be used as tools for practicing semi-occluded vocal tract exercises, with the additional benefit of providing real-time visual feedback of airflow during phonation. The flow threshold, combined with the flow feedback, would increase awareness of flow, rather than of pressure, during exercises using a flow ball device.
Palabras clave Flow ball
Floating ball game
Real-time visual feedback of airflow
Semi-occluded vocal tract
Voice
Editor(es) Elsevier
Fecha 2017-05
Formato application/pdf
Identificador bibliuned:425-Lfilipa-0016
http://e-spacio.uned.es/fez/view/bibliuned:425-Lfilipa-0016
DOI - identifier https://doi.org/10.1016/j.jvoice.2016.09.024
ISSN - identifier 0892-1997
Nombre de la revista Journal of Voice
Número de Volumen 31
Número de Issue 3
Página inicial 390.e1
Página final 390.e8
Publicado en la Revista Journal of Voice, Vol. 31 Issue 3
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 "Journal of Voice" on May 2017, available online: https://doi.org/10.1016/j.jvoice.2016.09.024
Notas adicionales Este es el manuscrito aceptado de un artículo publicado por Elsevier en "Journal of Voice" en May 2017, disponible en línea: https://doi.org/10.1016/j.jvoice.2016.09.024

 
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Creado: Tue, 05 Dec 2023, 19:52:55 CET