Microcontroller-driven analogue filter for active noise control

Marko Antila, Kari Hakanen, Jari Kataja

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


    Analogue filters are widely used in active noise control. Usually, their implementation is fixed. Parameters can be varied only by changing components or adjusting their values manually. However, during development of a control system, parameter adjustments are often needed. To address this problem, we have developed an analogue filter bank with an adjustable, digital real-time control of the parameters. The filter has been tested with an existing active noise control application. The structure of the analogue filter is described and results of the tests are given.
    Original languageEnglish
    Title of host publicationProceedings of ACTIVE 2002
    Subtitle of host publicationThe 2002 International Symposium on Active Control of Sound and Vibration
    EditorsPaolo Gardonio, Boaz Rafaely
    Place of PublicationSouthampton
    PublisherInstitute of Sound and Vibration Research (ISVR)
    ISBN (Print)978-0-85432-770-6
    Publication statusPublished - 2002
    MoE publication typeA4 Article in a conference publication
    EventInternational Symposium on Active Control of Sound and Vibration, ACTIVE 2002 - Southampton, United Kingdom
    Duration: 15 Jul 200217 Jul 2002


    ConferenceInternational Symposium on Active Control of Sound and Vibration, ACTIVE 2002
    Abbreviated titleACTiVE
    Country/TerritoryUnited Kingdom


    • active noise control
    • digitally controlled analogue filter
    • biquad filter


    Dive into the research topics of 'Microcontroller-driven analogue filter for active noise control'. Together they form a unique fingerprint.

    Cite this