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Access through your institution Buy or subscribe More and more people are becoming concerned about the control of environmental noise. That was certainly true of those attending the joint
meeting of the Acoustical Society of America and the Institute of Noise Control Engineering in June*. Although the meeting included more than 100 sessions covering all aspects of acoustics,
noise control received particular attention — especially active control of noise and vibration. Effective noise control often requires the reduction of noise transmission through panels or
partitions. In active structural acoustic control, actuators are attached to a panel to change its radiation characteristics. For example, ‘smart’ foam, with a piezoelectric actuator in
between layers of sound-absorbing foam, can reduce sound radiation from vibrating plates (C. Guigou and C. R. Fuller, Virginia Polytechnic Inst.). And a new active interior trim panel can
control aircraft noise at low frequency, up to 400 Hz (S. Sharp, G. Koopmann and W. Chen, Penn State Univ.). The actuator is a small, rigid panel that is driven in a piston-like motion by a
moving-coil transducer similar to that of a loudspeaker. This is a preview of subscription content, access via your institution ACCESS OPTIONS Access through your institution Subscribe to
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support AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Thomas D. Rossing is in the Department of Physics, Northern Illinois University, DeKalb, 601150-2854, Illinois, USA Thomas D. Rossing
Authors * Thomas D. Rossing View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS
ARTICLE Rossing, T. Unwanted and wanted sound. _Nature_ 388, 628 (1997). https://doi.org/10.1038/41669 Download citation * Issue Date: 14 August 1997 * DOI: https://doi.org/10.1038/41669
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