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Speech Production Laboratory

Speech Production Laboratory

Our research interests focus on understanding the cause-effect relationship between different components of the speech chain, including laryngeal physiology, vocal fold material properties, vocal fold vibration, voice acoustics, and voice quality. Current research projects include topics on laryngeal fluid-structure interaction, vocal fold biomechanics, neuromuscular control of voice production and quality, using both numerical and experimental approaches.
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Current Research Project

1. NIH/NIDCD Grant No. R01 DC009229: Sound Sources of Phonation
2. NIH/NIDCD Grant No. R01 DC011299: Biomechanical mechanisms of phonation


  • Principal Investigators: Dr. Zhaoyan Zhang
  • Investigators: Gerald Berke, MD, Bruce Gerratt, PhD, Jody Kreiman, PhD, Abie Mendelsohn, MD
  • Collaborators: Dr. Michael S. Howe, Boston University, Boston, MA; Dr. Richard S. McGowan, CReSS LLC, Lexington, MA

Recent Publications

  • Yin, J., Zhang, Z., (2013), The influence of thyroarytenoid and cricothyroid muscle activation on vocal fold stiffness and eigenfrequencies," Journal of the Acoustical Society of America, 133(5), 2972-2983.
  • Berke, G., Mendelsohn, A.H., Howard, S., Zhang, Z., (2013), Neuromuscular induced phonation in a human ex vivo perfused larynx preparation, Journal of the Acoustical Society of America, 133(2), EL114-EL117.
  • Zhang, Z., Kreiman, J., Gerratt, B.R., Garellek, M., (2013), Acoustic and perceptual effects of changes in body-layer stiffness in symmetric and asymmetric vocal fold models, Journal of the Acoustical Society of America., 133(1), 453-462.
  • Zhang, Z., Luu, T.H., (2012), Asymmetric vibration in a two-layer vocal fold model with left-right stiffness asymmetry: Experiment and simulation, Journal of the Acoustical Society of America, 132(3), 1626-1635.
  • Chhetri, D., Zhang, Z., and Neubauer, J., (2011), Measurement of Young's modulus of vocal folds by indentation, Journal of Voice, 25(1), 1-7.
  • Zhang, Z., Neubauer, J., Berry, D.A. (2007). Physical mechanisms of phonation onset: a linear stability analysis of an aeroelastic continuum model of phonation. Journal of the Acoustic Society of America, 122, 2279-2295.
  • Neubauer, J., Zhang, Z., Miraghaie, R., Berry, D.A. (2007). Coherent structures of the near field flow in a self-oscillating physical model of the vocal folds. Journal of the Acoustic Society of America, 121, 1102-1118.
  • Zhang, Z., Neubauer, J., Berry D.A. 2006. The influence of subglottal acoustics on laboratory models of phonation, Journal of the Acoustical Society of America, 120(3), 1558-1569.

Contact Information

Zhaoyan Zhang, PhD
Email: zyzhang@ucla.edu
Phone: (310) 206-4324

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