Hearing Instrument Laboratory


Current Research Projects

  • Acceptance of noise with and without visual speech input
  • Effect of interest level of speech on the acceptable noise level
  • Factors affecting preferred listening levels using an iPod
  • Effect of personality type on the acceptance of noise
  • Effect of digital noise reduction on acceptance of noise
  • Evaluation of open fit and receiver in the ear hearing instruments

Laboratory Description

The Hearing Instrument Laboratory (HIL) is housed in the Department of Audiology and Speech Pathology. One sound-treated room is located in the HIL. Equipment is available to synthesize and generate sound digitally. Responses to sounds can be measured behaviorally, acoustically, or electroacoustically using commercial data acquisition systems and software. The HIL contains IBM-compatible computers plus related hardware. Software is available to carry out all current forms of data analysis. The HIL is connected to the University's mainframe computers via an Ethernet network.

equipment in Plyler's Lab

Equipment, Materials, & Software

Other research equipment, materials, and software

  • Tucker-Davis Technologies System III Psychoacoustic Workstation
  • Grason-Stadler GSI 61 Audiometer
  • Madsen OB822 2 Channel Audiometer
  • Larson-Davis Type I Sound Level Meter (824)
  • Hi-Pro Box
  • Dell desktop computer
  • Connected Speech Test (CST)
  • Hearing in Noise Test (HINT)
  • Acceptable Noise Level Materials (ANL)
  • Cool-Edit Pro
  • SPSS
  • Audioscan Data Extraction
  • Abbreviated Profile of Hearing Aid Benefit (APHAB)