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acoustic acoustical ear hearing earphone electroacoustic electroacoustical transducers hearing aid headphone headset loudspeaker microphone psychoacoustics sound telephone telephony telephonometery

acoustic acoustical ear hearing earphone electroacoustic electroacoustical transducers hearing aid headphone headset loudspeaker microphone psychoacoustics sound telephone telephony telephonometery

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Last Update: MEZ/CET 29.07.2017, 00:08:28 Uhr