James Madison University

Speech Acoustics Lab

Focus of Lab

The overarching goal of the Speech Acoustics Lab is to contribute to the understanding of speech motor control through examining the acoustic correlates of speech.  Current projects of the laboratory focus on variability in the speech acoustic signal and its potential implications for speech motor processing.  Specifically, within-speaker variability, one form of variability in speech, is studied as a manifestation of changes made by the speech motor control system to meet different communicative demands (e.g., formal vs. casual styles of speaking).  In current research projects, different speaking tasks (e.g., reading vs. conversation) are designed and implemented to represent a range of communicative demands.
The speech acoustic output has been well-documented for its significant implications for both articulatory behaviors and speech perception.  In addition to acoustic analysis of speech, the laboratory also incorporates the use of perceptual measures in further establishing the acoustic-perceptual link.


Dr. Christina Kuo, Ph.D., Director
Office: HHS 1149
Phone: 540-568-1617
Email: kuocx@jmu.edu
Mailing Address:
MSC 4304
801 Carrier Drive
Harrisonburg, Virginia 22807

Current Projects

  • Examination of acoustic output variability in the speech produced by healthy adults across the life span
  • Examination of speaker-specific characteristics that influence acoustic output variability

Publications (last five years)

  • Kuo, C. (in press). Formant transitions in varied utterance positions. Folia Phoniatrica et Logopaedica.
  • Tjaden, K., Richards, E., Kuo, C., Wilding, G., & Sussman, J. (in press). Acoustic and perceptual consequences of clear and loud speech. Folia Phoniatrica et Logopaedica.
  • Kim, Y-J., & Kuo, C. (2012). Effect of level of presentation to listeners on scaled speech intelligibility of speakers with dysarthria. Folia Phoniatrica et Logopaedica, 64, 26-33.