Speech Perception and Production Laboratory

Current Research

  • The perception of infant directed speech in infants with hearing loss.
  • The effects of noise on first and second language perception.
  • The development of speech acquisition in infants with hearing loss.

Lab Description

The Speech Perception and Production Research Laboratory (SPPRL) is housed in the Department of Audiology and Speech Pathology. One sound-treated room is located in the SPPRL. Equipment is available to synthesize and generate sound digitally. Responses to sounds can be measured behaviorally, acoustically, or physiologically using commercial data acquisition systems and software. The ARL contains an Apple G5 computer, IBM-compatible computers plus related hardware. Software is available to carry out all current forms of data analysis.


  • Tucker-Davis Technologies System III Psychoacoustic Workstation
  • Grason-Stadler GSI 61 Audiometer
  • Madsen OB822 2 Channel Audiometer
  • Interacoustics AT235h Impedance/Audiometer
  • 1 Tascam, DA-P1 DAT recorder
  • 1 Maranz PMD 670 Digital Audio Recorder
  • 1 Senheiser Wireless Microphone
  • 1 Apple G5
  • 1 Apple ibook
  • 1 Dell Desktop
  • 1 Gateway Desktop
  • 4 LENA Recorders


  • Habit 2000
  • Super Lab (pictured at left, above)
  • CSL Acoustic Analysis Software (workstation pictured at right)
  • SPSS
  • SAS
  • HLM