Report - UNI EN ISO 16283-1 · UNI EN ISO 3382. 0,0 20,0 40,0 60,0 80,0 ... 2700 2400 2100 Directivity 1800 1/1 OCT 31,5 125 Hz 500 Hz 2 KHz 1200 8 KHz 1500 63 HZ 250 Hz 1 KHz 4 KHz 16 KHz

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