Active noise control using EMFi-Technology

Hannu Nykänen, Marko Antila, Jukka Lekkala, Kari Kirjavainen

    Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional


    Active Control of Sound (ACS) is a promising method for noise control. However, only a few applications are commercially attractive. One of the main problems has been the non-availability of good actuators for anti-sound production. Flat EMFi sensors and actuators can be easitly implemented in ACS applicaitons, where large surfaces are to be covered with sensors and/or anti-sound producing elements. Some promising results of the use of EMFi-technology in ACS are presented. Application areas include the reduction of noise entering the cabins of cars and trains and the increase of sound transmission loss in building elements.
    Original languageEnglish
    Title of host publicationAutomation Technology Review 1999
    Publication statusPublished - 1999
    MoE publication typeD2 Article in professional manuals or guides or professional information systems or text book material


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