An acoustical test system was specifically designed to evaluate stethoscopes under conditions which are applicable to the clinical situation in which they are used. This entailed the incorporation of acoustical analogues for human ears and the human chestwall into the test apparatus. The response curves of many differing stethoscopes fell into only four basic patterns and these correlated with critical features of stethoscope design. The magnitude of stethoscope performance discrepancies was found to be considerable.

Authors: Ertel, Paul Y.; Lawrence, Merle; Song, Wonjin
AES Convention: 37 (October 1969) Paper Number: 685
Publication Date: October 1, 1969 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=1327

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