National Acoustic Laboratories Library

CEi IEC 60318-3. Electroacoustics - Simulators of human head and ear. Part 3: Acoustics coupler for the calibration of supra -aural earphones used in audiometry

CEi IEC 60318-3. Electroacoustics - Simulators of human head and ear. Part 3: Acoustics coupler for the calibration of supra -aural earphones used in audiometry - Geneva ISO 1998

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