Active Noise Control Barrier for Acoustic Hardware System Design

능동형 방음벽 개발을 위한 H/W 시스템 설계

  • Received : 2011.07.13
  • Accepted : 2011.10.25
  • Published : 2011.12.01


Traffic noise annoyance in dwelling area like private houses and apartment is becoming very important issue nowadays in South Korea. In this paper frequency analysis of the traffic noise was performed. Based on sound pressure levels analyses and its frequency content specific requirements for component of active noise control systems are formulated. Active compensational loudspeaker, microphone front end and DSP design were analysed, considered and proposed. Components specifications and design solutions are verified using modelling and experimental technique.


Road traffic noise;Noise barrier;Active noise control;Compensational loudspeaker


  1. Nelson P. A., Elliott S. J.,, Active control of sound. Academic press, 1992
  2. ColinH. Hansen, Understanding active noise cancellation. Spon Press, London and New York, 2001
  3. C. Hansen S. Snyder Active Noise Control, Primer, Sen M. Kuo, Dennis R.Morgan, : Active Noise Control System Algorithm/DSP implementations, John Wiley & Sons, 1996
  4. K.Yamanoto, Y.Shono, H.Ochiai. and Y.Hirao,"measurements of noise reduction by absorptive devices mounted at the top of highway noise barriers" inter-noise 95, pp.389-392, 1995
  5. K.Fujiwara, D..C.Hothersall, and C-H KIM,"noise barriers with reactive surfaces" Applied Acoustics, Vol 53(4), pp.255-272, 1997
  6. Sang-Gon Cha, Jang-Cheol Choi, Proceeding of the KSNVE Annual Spring Conference, Research Finding from Special Group's Opinion Survey on Noise Barrier Develoment, pp. 554-555., 2011