title: Real-time estimation of aerodynamic features for ambulatory voice biofeedback.
abstract: The development of ambulatory voice monitoring devices has the potential to improve the diagnosis and treatment of voice disorders. In this proof-of-concept study, real-time biofeedback is incorporated into a smartphone-based platform that records and processes neck surface acceleration. The focus is on utilizing aerodynamic measures of vocal function as a basis for biofeedback. This is done using regressed Z-scores to compare recorded values to normative estimates based on sound pressure level and fundamental frequency. Initial results from the analysis of different voice qualities suggest that accelerometer-based estimates of aerodynamic parameters can be used for real-time ambulatory biofeedback.
authors.affiliation: Department of Electronic Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile andres.llico@usm.cl, matias.zanartu@usm.cl, agustin.gonzalez@usm.cl.
authors.forename: Andrés F
authors.initials: AF
authors.lastname: Llico
authors.affiliation: Department of Electronic Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile andres.llico@usm.cl, matias.zanartu@usm.cl, agustin.gonzalez@usm.cl.
authors.forename: Matías
authors.initials: M
authors.lastname: Zañartu
authors.affiliation: Department of Electronic Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile andres.llico@usm.cl, matias.zanartu@usm.cl, agustin.gonzalez@usm.cl.
authors.forename: Agustín J
authors.initials: AJ
authors.lastname: González
authors.affiliation: Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, USA wodicka@purdue.edu.
authors.forename: George R
authors.initials: GR
authors.lastname: Wodicka
authors.affiliation: Center for Laryngeal Surgery and Voice Rehabilitation, Massachusetts General Hospital, Boston, Massachusetts 02114, USA mehta.daryush@mgh.harvard.edu, jvanstan@mghihp.edu, hillman.robert@mgh.harvard.edu.
authors.forename: Daryush D
authors.initials: DD
authors.lastname: Mehta
authors.affiliation: Center for Laryngeal Surgery and Voice Rehabilitation, Massachusetts General Hospital, Boston, Massachusetts 02114, USA mehta.daryush@mgh.harvard.edu, jvanstan@mghihp.edu, hillman.robert@mgh.harvard.edu.
authors.forename: Jarrad H
authors.initials: JH
authors.lastname: Van Stan
authors.affiliation: Center for Laryngeal Surgery and Voice Rehabilitation, Massachusetts General Hospital, Boston, Massachusetts 02114, USA mehta.daryush@mgh.harvard.edu, jvanstan@mghihp.edu, hillman.robert@mgh.harvard.edu.
authors.forename: Robert E
authors.initials: RE
authors.lastname: Hillman
mesh_terms: D000328:Adult; D001309:Auditory Threshold / Q000502:physiology; D001676:Biofeedback, Psychology / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D063731:Mobile Applications; D018670:Monitoring, Ambulatory; D010699:Phonation / Q000502:physiology; D013016:Sound; D014831:Voice / Q000502:physiology*; D014832:Voice Disorders / Q000175:diagnosis*; D055815:Young Adult