UNE-EN 60318-4:2011 Electroacoustics - Simulators of human head and ear -- Part 4: Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts
2011UNE-EN 60318-4:2011 Electroacoustics - Simulators of human head and ear -- Part 4: Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts