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Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
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Health Impairing Aspects by Headphones Electro-Magnetic Fields
Epidemiological studies about extremely-low-frequency electro-magnetic fields underlined human health impairing aspects. This work demonstrates multiply used headphones/headsets as not only nearfield sound reinforcing devices. Measurements about 100 different headphones/headsets using Pink Noise at 70 dBSPL(C) reveal, that the majority of objects produce a critical (see TCO'95) magnetic flux. Furthermore is illustrated a technique to reduce the head-related magnetic field emissions.
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