Auditory Research Laboratory

The Auditory Research Lab is located in Hubbard Hall, Room 106 on the WSU main campus.

It is the primary teaching and research laboratory of Dr. Xiao-Ming Sun. The lab is used to accomplish teaching activities for the courses of acoustics and instrumentation, otoacoutic emissions and auditory evoked potentials. Utilizing the instruments, students in the AuD program work on their class assignments, practice clinical technologies and complete their capstone projects. PhD students also conduct research projects and dissertation studies.

1) Two sound-attenuated booths (Industrial Acoustics Co.).
2) GSI 60 DPOAE system: DPOAE and SOAE measurements.
3) Otodynamics ILO Echoport OAE system: TEOAE, DPOAE and SOAE measurements.
4) Intelligent Hearing Smart EP system: ECochG, ABR, MLR, LLR, P300, and ASSR measurements.
5) Intelligent Hearing Smart OAE system: TEOAE, DPOAE and SOAE measurements.
6) Intelligent Hearing Smart Audiometry system: Audiometric tests.
7) 2EOAE System (Software developed by Dr Doug Keefe): SFOAE, DPOAE, and TEOAE measurements.
8) ReflWin system (Software developed by Dr Doug Keefe): Wideband acoustic transfer function in the ear canal, being used to predict the function of the middle ear, and to test acoustic reflex thresholds.
9) Shared instruments by all labs: Interacoustics AC40 Clinical Audiometer; GSI Tymstar Clinical Middle-ear Analyzer, GSI 33 Tympanometer.

Recent Studies

  • Effect of negative middle-ear pressure on acoustic transmission in ASSR and ABR measurements.
  • Effects of negative middle-ear pressure on the wideband energy reflectance measurement.
  • Simultaneous recording of ABRs and TEOAEs .
  • Tympanometry and multi-frequency tympanometry in human ears with negative middle-ear pressure.

For further information, contact:

Dr. Xiao-Ming Sun, MD, PhD
Associate Professor

Telephone: 316-978-6160

Speech Development and Communication Lab

The Speech Development and Communication Lab is located within the Evelyn Hendren Cassat Speech-Language-Hearing Clinic at 29th and Oliver.

The lab focuses on two broad categories of research in the communication sciences: speech development and communicative interaction. The lab's research projects revolve primarily around questions related to speech development in infants and toddlers, but the multi-purpose space is adaptable to both child- and adult-related communication research. A long-term study is currently under way to explore (a) the relationship between vocalization and respiratory behaviors in infants, and (b) the role that parent interaction plays in infant speech development.

The lab is fully equipped to record speech, respiration, and motion from multiple participants. Speech is recorded with wireless microphones. Respiratory behaviors are captured using a wide array of techniques, including respiratory inductance plethysmography, pneumotachometry, and spirometry. Video cameras allow for full-body or close-up views of participants during interaction-related studies.

For further information, contact:

Douglas F. Parham, PhD, CCC-SLP
Associate Professor and SLP Graduate Coordinator

Telephone: 316-978-5634