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.

Author: Koenig, Florian
Affiliation: ULTRASONE AG, Penzberg, Germany
AES Convention: 110 (May 2001) Paper Number: 5293
Publication Date: May 1, 2001
Subject: Instrumentation and Measurement

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