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Reference thresholds for EARTONE 3A insert earphones
1Acoustics Laboratory, Technical University of Denmark, Lyngby.
Scandinavian Audiology
|January 1, 1991
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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