The UT Voice Lab is dedicated to understanding and enhancing voice production.

We study voice production in individuals with neurological disorders, healthy speakers, and singers to identify factors that impair or improve vocal control. Our interdisciplinary research aims to advance assessment and treatment of neurological voice disorders.


Current clinical methods for assessing neurological voice disorders like essential vocal tremor focus primarily on laryngeal function. However, neurological disorders can also impair respiratory and vocal tract function, which can affect voice production.

The UT Voice Lab research aims to develop comprehensive, clinically-feasible assessments of laryngeal, respiratory, and vocal tract function for individuals with neurological voice disorders.


While current research on behavioral treatment of neurological voice disorders like essential vocal tremor is limited, clinical experience indicates that individuals may benefit from voice therapy.

The UT Voice Lab is working to develop systematic behavioral approaches for improving vocal control in speakers with neurological disorders.


Undergraduate and graduate students in the UT Voice Lab are educated and trained on comprehensive voice assessment procedures, including auditory-perceptual ratings, acoustical analyses, laryngoscopy, and respiratory kinematic analyses. In addition, graduate students are trained to administer and evaluate behavioral voice therapy.

If you are interested in assisting with research, please email Dr. Lester-Smith.