Current Projects

Gender Differences in Occupational Voice Users

  1. Quantify gender-specific voice accommodation strategies used in occupational settings and acoustic environments.
  2. Develop models of exposure and recovery from heavy voice use.

Hypothesis: The work-related vocal demands placed on occupational voice users (e.g., teachers) elicit gender-specific speech accommodation strategies, which exacerbate the incidence of voice issues in women. A talker’s response to the surrounding acoustic environment, to varying communication goals, and/or to vocal fatigue will be evidenced by measurable speech production changes (vocal output, laryngeal adduction, pulmonary support).

Improving Speech Intelligibility and Vocal Health by Controlling Background Noise in the Classroom

  1. Develop a pilot device with warning lights that are activated whenever students’ babble noise exceeds a given level.
  2. Test this device in a laboratory environment.

Hypothesis: The application of this device in real classrooms will cause a reduction in student noise. In this way, its application will reduce the teachers’ risk of developing voice diseases and improve speech intelligibility for students in classrooms.

(See post about it here.)

Understanding Vocal Damage and Vocal Fatigue

  1. Quantify the vibration exposure of voice tissues from vocalizations
  2. Quantify the recovery of those tissues to the vibration

Archive for Longitudinal Individual Voice (ALIVe)  

Alive Logo 1

  1. Collect longitudinal voice samples of both professional and non-professional voice users (30+ years of samples)
  2. Examine acoustic changes in the voice to understand how the voice changes
  3. Compare voice changes to physiological changes due to general aging, as well as specific health conditions
  4. Using voice samples, examine how listeners’ estimates of the talker’s chronological age compares to aging changes in the voice to determine what acoustic cues are used to estimate age.

Influence of Subglottic Anatomy on Voice Production


  1. Consult in procurement of laryngeal specimen, micro-CT imaging, and histological slides.
  2. Develop research protocols and train primary site location students in locating and selecting anatomical landmarks on images.
  3. Collect image histological slides and design online repository for images.