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Real-time estimation of aerodynamic features for ambulatory voice biofeedback
Andrés F Llico1, Matías Zañartu1, Agustín J González1
1Department of Electronic Engineering, Universidad Técnica Federico Santa María, Valparaíso, Chile andres.llico@usm.cl, matias.zanartu@usm.cl, agustin.gonzalez@usm.cl.
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.
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