After a review of the basic test procedures used to measure ear-level hearing aid performance, the various types of couplers covered in America and International standards are discussed, particularly with respect to the acoustic connection between the hearing aid and the coupler. Finally, a comparison of free-field and sound box measurements is discussed.

Author: Lybarger, Samuel F.
Affiliation: E. A. Myers and Sons, Inc., Canonsburg, PA
JAES Volume 14 Issue 2 pp. 126-131; April 1966
Publication Date: April 1, 1966

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