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

    Abstract

    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 , the 2002 International Symposium on Active Control of Sound and Vibration
    Place of PublicationSouthampton
    Pages449-456
    Volume1
    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

    Conference

    ConferenceInternational Symposium on Active Control of Sound and Vibration, ACTIVE 2002
    Abbreviated titleACTiVE
    CountryUnited Kingdom
    CitySouthampton
    Period15/07/0217/07/02

    Keywords

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

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  • Cite this

    Antila, M., Hakanen, K., & Kataja, J. (2002). Microcontroller-driven analogue filter for active noise control. In Proceedings of ACTIVE 2002 , the 2002 International Symposium on Active Control of Sound and Vibration (Vol. 1, pp. 449-456).