Active Noise Control: Is It Good for Anything?
Dr. Scott Sommerfeldt
Department of Physics and Astronomy
Brigham Young University
Active noise control, in
which sound is used to attenuate sound, was a topic of great interest during
the 1980s. Many mistakenly held out the
hope that it could solve most, if not all, of the world’s difficult noise
problems. As it became apparent that the
technology had been over-hyped, and that active control would not solve all the
world’s problems, many became disillusioned with the technology and largely
abandoned it. However, research in the
field has steadily continued on during the intervening years, and the
technology has been further developed until it is now becoming a viable
solution for a number of applications.
This presentation will review the physical principles governing the
application of active control, overview our work in this field here at BYU, and
look at some of the applications where active noise control is starting to find
its way into the marketplace.