During the 1956 meeting of the American Academy of Ophthalmology and Otolaryngology, in the session on new instruments, Dr. Howard House presented the Oto-Chek, which he described as "a compact, battery-powered, transistorized, screening audiometer... [of which] there are two basic models.... One is a single-frequency model designed to test hearing at 4000 cycles, with fixed output levels of 20, 35 and 50 decibels.... The other is a double-frequency model designed to test hearing at 2000 cycles and at 4000 cycles with fixed output levels of 15 and 35 decibels...."1In January, 1957, Dr. House and Dr. Aram Glorig collaborated in reiterating the merits of Oto-Chek audiometry at the meeting of the Western Section of the American Laryngological, Rhinological and Otological Society, in San Francisco. The paper they presented there was published the following July in The Laryngoscope2 shortly after the appearance of Dr. House's first paper, in the
LIGHTFOOT C, BUCKINGHAM RA, KELLY MN. A Check on Oto-Chek. AMA Arch Otolaryngol. 1959;70(1):103–113. doi:10.1001/archotol.1959.00730040107017
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