Preferred Hearing Aid Response Characteristics Under Acoustic and Telecoil Coupling Conditions Telephone communication remains a major obstacle for hearing-impaired listeners. Even with the use of amplification, many hearing aid (HA) users report significant difficulty understanding telephone conversations. Although much effort has recently been focused on determining ideal HA performance for typical communication settings, less has been directed toward preferred HA responses ... Research Article
Research Article  |   November 01, 1993
Preferred Hearing Aid Response Characteristics Under Acoustic and Telecoil Coupling Conditions
 
Author Affiliations & Notes
  • Gary P. Rodriguez, PhD
    Manatee Hearing and Speech Center, Medical Arts Building, Suite 3400, 2010 59th Street West, Bradenton, Fl 34209
  • Alice E. Holmes
    University of Florida, Gainesville
  • Neil J. DiSarno
    Southwest Missouri State University, Springfield
  • Holly Kaplan
    University of Florida, Gainesville
Article Information
Hearing & Speech Perception / Acoustics / Hearing Disorders / Hearing Aids, Cochlear Implants & Assistive Technology / Research Articles
Research Article   |   November 01, 1993
Preferred Hearing Aid Response Characteristics Under Acoustic and Telecoil Coupling Conditions
American Journal of Audiology, November 1993, Vol. 2, 55-59. doi:10.1044/1059-0889.0203.55
History: Received June 9, 1992 , Accepted March 11, 1993
 
American Journal of Audiology, November 1993, Vol. 2, 55-59. doi:10.1044/1059-0889.0203.55
History: Received June 9, 1992; Accepted March 11, 1993

Telephone communication remains a major obstacle for hearing-impaired listeners. Even with the use of amplification, many hearing aid (HA) users report significant difficulty understanding telephone conversations. Although much effort has recently been focused on determining ideal HA performance for typical communication settings, less has been directed toward preferred HA responses during telephone coupling conditions. If one assumes that telecoil coupling strategies may require different HA performance characteristics because of line noise, filtering effects, coupling method, and output limitations imposed by the telephone system and receiver, then further study of listeners' preferred HA response characteristics under telecoil coupling conditions appears warranted.

This study evaluated the preferred real ear aided response (REAR) for a group of hearing-impaired listeners under acoustic and telecoil conditions when coupled to a standard telephone receiver. Findings revealed that subjects preferred substantially more low-frequency gain than would be predicted using three popular prescriptive formulae. In general, a gradually rising to flat response was preferred by most of the hearing-impaired listeners. Implications for HA fitting and management will be discussed.

Acknowledgments
This study was supported in part by a grant from the Florida State University Foundation. The authors also wish to thank Charles Sedacca, Robert Yanke, and Tom Frank for their help with this project.
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