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Scandinavian Audiology Volume 20, 1991 - Issue 3
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Original Article

Reference Thresholds for Eartone 3A Insert Earphones

Torben Poulsen Acoustics Laboratory, Technical University of Denmark, Lyngby, Denmark
Pages 205-207 | Received 25 Feb 1991, Accepted 08 Apr 1991, Published online: 12 Oct 2009
 

Abstract

Hearing threshold determinations have been performed with EARTONE 3A insert earphones and compared with threshold measurements performed with TDH 39 supra-aural earphones. 22 normal hearing subjects participated. Results are given as SPL values measured in an acoustic coupler (IEC 126) and an occluded-ear simulator (IEC 711)

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