The Hearing Aid Research Laboratory is housed at the James H. Quillen VAMC. The Hearing Aid Research Laboratory receives support from the Rehabilitation Research and Development (RR&D) Service, Department of Veterans Affairs via the Auditory and Vestibular Dysfunction Research Enhancement Award Program grant and a RR&D funded Career Development Award.
Director: Earl Johnson, Au.D., Ph.D.
Funded Research May 2010-April 2012:
Career Development Award-1, U.S. Department of Veterans Affairs
Rehabilitation Research and Development – Mentors: Richard Wilson, Ph.D., Harvey Dillon, Ph.D., and Todd Ricketts, Ph.D.
Title: Recommended Targets for Hearing Aids: Extending High- Frequency Bandwidth
Time period: 2 years - $239,920
Project ID: D7336-M
Non-Funded Research Posters:
Bell, D. Johnson, E.E., Robinson, J., Koder-Carr, K., Oxendine, K., Cox, P., Hensley, L. (2012, March). Hearing aid evaluation clinic systems redesign, 2012 Joint Department of Defense and Veterans Affairs Audiology Conference, Dallas, TX.
Johnson, E.E., Ching, T. Hou, S., Dillon, H., Zhang, V., Burns, L., van Buynder, P., Wong, A., Flynn, C. (2012). A comparison of NAL and DSL prescriptive methods for pediatric hearing aid fittings: Estimates of speech intelligibility, loudness, and safety. International Hearing Aid Research Conference, Lake Tahoe, CA.
• 10 X 10 double-wall sound booth and 15 X 10 outside control room
• Typical hearing testing equipment including an audiometer, CD player, tympanometer, and otoscope
• Two HP Desktop PCs and Dell laptop
• MOTU sound mixers and multiple I/O devices,
• Tucker Davis Technology RX8 sound processor and PA5 attenuators
• KEMAR manikin with a left and right ear IEC 711 microphone,
• 8 Genelec 1031A bi-amplified, two-way active monitor loudspeaker systems
• Real-ear probe microphone equipment including a Frye Fonix 7000, Fonix 8000 and Audiscan Verifit
• Etymotic Research(ER)-7C units probe microphones for real-time audio recordings at the eardrum
• Headphone output devices including Sennheiser HAD-200, ER-3A for audiometric testing, ER-2 for a flat wide frequency response, and an ER-5 for maximum amplitude output