A modified hearing aid fitting procedure using both real ear and 2cc coupler measurement system.
10.3349/ymj.1997.38.4.202
- Author:
Yoon Joo SHIM
1
;
Hee Nam KIM
;
Keehyun PARK
Author Information
1. Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords:
Hearing aid fitting, real ear to coupler difference (RECD)
- MeSH:
Adolescence;
Adult;
Aged;
Child;
Child, Preschool;
Ear;
Hearing Aids*;
Human;
Infant;
Middle Age;
Otolaryngology/methods*;
Otolaryngology/instrumentation*;
Prosthesis Fitting/methods*;
Time Factors
- From:Yonsei Medical Journal
1997;38(4):202-205
- CountryRepublic of Korea
- Language:English
-
Abstract:
In order to reduce the test time in real ear hearing-aid fitting for children, the validity of applying the average real ear to coupler differences (RECDs) in prefitting procedure using a 2cc coupler measurement system was evaluated by checking whether the majority of people's RECDs might occur within 5 dB of the average RECDs (N = 116) in each test frequency and age group. The percentages of occurrence were around 90% in test subjects' RECDs in saturation sound pressure levels (SSPLs) and around 70% in gain in each important test frequency. Appropriate test frequencies in prefitting are 500, 1000, 1500 and 2000 Hz.
