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Comparison of earphone and sound field methods for estimating noise attenuation of foam earplugs
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MAP20071019990
Carter, N.L. ‌
Comparison of earphone and sound field methods for estimating noise attenuation of foam earplugs / N.L. Carter, G. Upfold
Sumario: The Real Ear Attenuation at Threshold (REAT) of ear foam earplugs was determined, using three methods of presentation of the test tones during a single fitting of the earplug. The three presentation methods were (a) sound-field listening; (b) TDH49 earphone mounted in the shell of a circumaural earmuff; and (c) TDH49 earphone in a model 51 cushion. Threshold were tested once under each condition
En: American Industrial Hygiene Association journal. - Fairfax, Virginia. - Vol. 54, nº 6, June 1993 ; p. 307-312
1. Higiene industrial ‌. 2. Contaminantes físicos ‌. 3. Ruido ‌. 4. Control del ruido ‌. 5. Audiometría ‌. 6. Tests ‌. 7. Cascos de protección ‌. 8. Protectores auditivos ‌. I. Upfold, G. ‌. II. Título. III. Título: American Industrial Hygiene Association journal.