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Description
SNR : 29 dB H : 27 M : 27 L : 26 Hz Fréquence 63 125 250 500 1000 2000 4000 8000 dB Affaiblissement 31.6 32.7 30.9 30.6 37.4 29.9 40.3 44.6 dB Ecart type 5.6 5.7 5.9 5.2 8.1 5.1 7.7 5.0 Protection effective 26 27 25 25.4 29.3 24.8 32.6 39.6
