UNE-EN 60318-3:2015 Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry (Endorsed by AENOR in March of 2015.)
2015UNE-EN 60318-3:2015 Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry (Endorsed by AENOR in March of 2015.)
2000UNE-EN 60318-3:2000 ELECTROACOUSTICS - SIMULATORS OF HUMAN HEAD AND EAR. PART 3: ACOUSTIC COUPLER FOR THE CALIBRATION OF SUPRA-AURAL EARPHONES USED IN AUDIOMETRY.