Predicted Gain and Functional Gain With Transcranial Routing of Signal Completely-in-the-Canal Hearing Aids Transcranial routing of signal (TCROS) was accomplished using completely-in-the-canal (CIC) hearing aids in 5 profoundly unilaterally hearing-impaired individuals. The functional gain realized by the participants far exceeded the gain predicted by measuring the acoustic output and real ear aided response of the hearing aids. The difference between predicted and functional ... Short Course
Short Course  |   December 01, 2003
Predicted Gain and Functional Gain With Transcranial Routing of Signal Completely-in-the-Canal Hearing Aids
 
Author Affiliations & Notes
  • Marc A. Fagelson
    East Tennessee State University, Johnson City
  • Colleen M. Noe
    James H. Quillen VA Medical Center, Mountain Home, TN, and East Tennessee State University, Johnson City
  • Owen D. Murnane
    James H. Quillen VA Medical Center, Mountain Home, TN, and East Tennessee State University, Johnson City
  • Jennifer S. Blevins
    James H. Quillen VA Medical Center, Mountain Home, TN, and East Tennessee State University, Johnson City
  • Corresponding author: e-mail: fagelson@etsu.edu
Article Information
Hearing Aids, Cochlear Implants & Assistive Technology / Research and Technology / Short Courses
Short Course   |   December 01, 2003
Predicted Gain and Functional Gain With Transcranial Routing of Signal Completely-in-the-Canal Hearing Aids
American Journal of Audiology, December 2003, Vol. 12, 84-90. doi:10.1044/1059-0889(2003/015)
History: Received August 12, 2003 , Accepted November 18, 2003
 
American Journal of Audiology, December 2003, Vol. 12, 84-90. doi:10.1044/1059-0889(2003/015)
History: Received August 12, 2003; Accepted November 18, 2003

Transcranial routing of signal (TCROS) was accomplished using completely-in-the-canal (CIC) hearing aids in 5 profoundly unilaterally hearing-impaired individuals. The functional gain realized by the participants far exceeded the gain predicted by measuring the acoustic output and real ear aided response of the hearing aids. The difference between predicted and functional gain increased with signal frequency and was attributed at least in part to mechanical vibration of the hearing aid in the external canal. Implications for fitting unilateral hearing loss using TCROS amplifying systems are discussed.

Order a Subscription
Pay Per View
Entire American Journal of Audiology content & archive
24-hour access
This Article
24-hour access