Centro de Documentacion de Fundación MAPFRE - Comparison of earphone and sound field methods for estimating noise attenuation of foam earplugs

Notas: 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 conditionRegistros relacionados: En: American Industrial Hygiene Association journal. - Fairfax, Virginia. - Vol. 54, nº 6, June 1993 ; p. 307-312Materia / lugar / evento: Higiene industrial Contaminantes físicos Ruido Control del ruido Audiometría Tests Cascos de protección Protectores auditivos Otros autores: Upfold, G.
Títulos secundários: Título: American Industrial Hygiene Association journal
Outras classificações: 872