A Noise-attenuating Enclosure for Audiometer Earphones
نویسندگان
چکیده
منابع مشابه
A noise-attenuating enclosure for audiometer earphones.
Noise-excluding earphones may be subdivided into circumaural earphones and noise-attenuating earphone enclosures. Two versions of 'Otocups', an example of the latter subdivision, were evaluated in a series of experiments and in comparison with a conventional type of earphone (Telephonics TDH-39 receiver in a MX-4I /AR cushion). The experiments involved a comparison of auditory threshold, artifi...
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ژورنال
عنوان ژورنال: Occupational and Environmental Medicine
سال: 1967
ISSN: 1351-0711
DOI: 10.1136/oem.24.1.41