What is it about?

Can technology provide biofeedback that reduces voice disorders? Currently, voice biofeedback in speech-language pathology focuses on alerting people when their voice production becomes harmful, but there has been minimal research about biofeedback that addresses how people perceive their own voice while speaking. It would be helpful to the field of speech pathology to develop biofeedback technology that addresses auditory-motor impairments in people with voice disorders, and that's what this project aimed to do. This study involved nearly 50 patients diagnosed with various voice disorders who consented to the study at the Lakeshore Professional Voice Center. We explored the possibility of using a special type of headphone to deliver real-time voice biofeedback.

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Why is it important?

Across all of the patients, we found that a high level of this type of biofeedback resulted in adjustments in the way they produced their voice. Specifically, the high-level of feedback resulted in a softer and breathier voice. This extends a previously studied phenomenon called the Fletcher Effect to bone conduction. So, what does this mean? In voice therapy, a softer and breathy voice may be a target of treatment, so the use of these bone conduction headphones for biofeedback is worthy of future scientific research to eventually be implemented in voice therapy.


I had the great pleasure of spearheading this study with my colleagues at the Lakeshore Professional Voice Center and the University of Illinois at Urbana-Champaign. I hope this article informs clinical practitioners about the efficacy of this biofeedback technology.

Charles J Nudelman
University of Illinois at Urbana-Champaign

Read the Original

This page is a summary of: Voice Biofeedback via Bone Conduction Headphones: Effects on Acoustic Voice Parameters and Self-Reported Vocal Effort in Individuals With Voice Disorders, Journal of Voice, November 2022, Elsevier,
DOI: 10.1016/j.jvoice.2022.10.014.
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