DAVID P. LAWRANCE, M.D.; W. AIRTH-KINDREE, M.D.; THOMAS FILARDO, M.D.
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To the editor: Our cost-conscious times affect medical research and education, as well as patient-derived revenues. High-fidelity data recorders are not inexpensive items, and are therefore cherished items necessary in almost every laboratory. Portability is often a key feature. We have not seen published reports of consumer-grade portable stereo or dictating cassette recorders (such as the Sony Walkman) put into service as data recorders, yet we have found that they can be remarkably accurate and cheap instruments.
Portable stereo recorders have remarkably flat frequency responses from 30 Hz to 15 000 Hz. These recorders usually provide plug-in standard electrical interfaces
LAWRANCE DP, AIRTH-KINDREE W, FILARDO T. Dictating Machines as Data Recorders. Ann Intern Med. ;107:946. doi: 10.7326/0003-4819-107-6-946_1
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Published: Ann Intern Med. 1987;107(6):946.
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