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Communication Sciences & Disorders _

Suzanne Boyce, PhD, Lab

Biographical Sketch

Dr. Boyce is a speech language pathologist and linguist with postdoctoral training in speech technology.Her interests involve the interaction of sound pattern systems in language (phonology) with articulation and acoustics of speech and voice.

Some areas of specialty include the production and perception of late-emerging sounds such as /r/, /l/, and /s/, and acoustical measures of speech intelligibility.She teaches courses in the areas of speech and hearing science, the conduct of research, and grantwriting.She is the research director of a clinic at UC pioneering the use of ultrasound as biofeedback for speech articulation therapy.

The general thrust of her clinical and translational research interests is to translate basic research knowledge about how people speak and hear into software tools that enable clinicians to use that knowledge in intervention.


Speech Research Lab

This lab would be more accurately termed the “Production of Language through Speech” lab, because the acoustics and articulation of speech cannot be divorced from the language function they embody.Research activities are focused on the following areas.

  • Acoustic and Articulatory Phonetics of Intelligibility
  • Acoustic and Articulatory Tracking of Therapy Results
  • Characterizing Speech Production for Late-Emerging Sounds
  • Modeling of Vocal Tract Acoustics
  • Articulatory Imaging Modalities
  • Comparing Acoustic and Articulatory Phonetics Across Languages

A major mission of the lab is to mentor undergraduate and graduate students in the conduct of research that will improve our knowledge of language and speech and make this knowledge useful for clinicians.

Ultrasound Feedback Therapy Project

Dr. Boyce and Ms. Sue Schmidlin, Clinic Director, are joint investigators in an ongoing project to test the effectiveness of ultrasound biofeedback therapy for children and adults with persistent speech sounds disorders and to develop effective treatment protocols.


Projects in the Speech Research Lab are typically funded by NIH grants.Current funded projects include ways to improve speech intelligibility for clinicians interacting with hearing impaired patients, basic and clinical research on sound generation in the larynx, the intelligibility of speech processed to remove background noise, and developing software to analyze speech acoustics available to a wider range of neuroscientists.

Research Collaborations

Dr. Boyce serves as a co-PI or consultant on research projects with colleagues in the University of Cincinnati Otolaryngology Dept, Massachusetts Institute of Technology (MIT), New York University, Haskins Laboratories, Northeastern University, and the University of Maryland.

Graduate Students

  • Sarah Hamilton, Ultrasound Therapy for American English /r/
  • Ahmed Rivera-Campos, Ultrasound Therapy for Spanish trilled /r/
  • Marisha Speights, Technology for Speech Therapy and Telehealth


Published article in the Journal of Visualized Experiments, JoVE. The link Ultrasound Images of the Tongue: A Tutorial for Assessment and Remediation of Speech Sound Errors is


Curriculum Vitae (select link to view)

Suzanne Boyce Headshot

Suzanne Boyce, PhD 
Phone: 513-558-8509
Academic Profile Page

Contact Us

Department of Communication Sciences and Disorders
3202 Eden Avenue
P.O. Box 670379
Cincinnati, OH 45267-0379
Phone: 513-558-8502
Fax:  513-558-8500

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