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February 1956

A New Formula for Using the Audiogram to Predict Speech Hearing Loss

Author Affiliations

New London, Conn.
From the U. S. Navy Medical Research Laboratory, Submarine Base.

AMA Arch Otolaryngol. 1956;63(2):158-176. doi:10.1001/archotol.1956.03830080044011

INTRODUCTION  During the past three decades three trends in tests of hearing have proceeded simultaneously: first, a growing dissatisfaction with the spoken-voice and whispered-voice tests given since time immemorial; second, a growing intrusion of the commercial audiometer into the testing situation. Some have condemned the free voice tests as only the roughest of screens, neglecting their value in the hands of a really experienced tester, and others have looked to the audiometer as science's answer to all hearing testing problems, neglecting the difficulties of calibration, administration, and interpretation which may make results quite misleading.A third trend has also proceeded somewhat more recently, in the development of the socalled speech audiometer. Although some few research-minded otologists have been using the phonograph for speech testing for almost 50 years, electronic speech-amplification systems calibrated for speech audiometry are still much rarer than the pure-tone audiometer, now in use by the thousands.At

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