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Comparison of real-ear to coupler difference values in the right and left ear of hearing aid users
Kevin J Munro1, Elaine M Howlin
1School of Psychological Sciences, University of Manchester, Manchester M13 9PL, United Kingdom. kevin.j.munro@man.ac.uk
Objective:
The purpose of this study was to compare real-ear to coupler difference (RECD) values in the right and left ear of hearing aid users.
Design:
RECDs were obtained from both ears of 16 adults, 17 school-age children, and 11 preschool children using the Audioscan Verifit real-ear microphone system.
Results:
In 80 to 90% of participants, the difference between ears was generally <3 dB at 0.5 to 4 kHz.
Conclusions:
In hearing aid users with nonoccluding wax and normal middle ear function, the difference in RECD between the right and left ear is small and probably not clinically significant.
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