Now showing items 1-3 of 3

    • Acoustic performance of a stretched membrane and porous blanket combination 

      Thomas, W. A., Jr.; Hurst, Charles J. (Acoustical Society of America, 1976)
      The sound absorption performance of an acoustic absorber consisting of a stretched circular membrane placed a short distance in front of a fiberglass blanket was both measured and predicted. Both theoretical and experimental ...
    • A broadband passive-active sound absorption system 

      Smith, Jerome P.; Johnson, Brody D.; Burdisso, Ricardo A. (Acoustical Society of America, 1999-11-01)
      In recent years, hybrid absorption systems have been implemented which achieve high sound absorption over a broad frequency range. This work is an experimental study of a broadband hybrid absorption system which is comprised ...
    • A new hybrid passive/active noise absorption system 

      Beyene, Samson; Burdisso, Ricardo A. (Acoustical Society of America, 1997-03-01)
      A new hybrid passive/active system is developed for sound absorption over a wide frequency range. The system is comprised of a layer of absorbing material positioned at a distance from an active wall, leaving an air space. ...