An approach to global equalisation in a rectangular room at low frequencies

Arturo Orozco

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    The motivation of this study is the fact that sound reproduced in a room undergoes a spectral colouration, which is undesirable. This effect is particularly severe at low frequencies in small enclosures.A theoretical study based on computer simulations is presented. The listening area is a continuous region in a rectangular room that occupies almost the entire room. A travelling wave is generated by feeding a number of loudspeakes with the signal to be reproduced passed through digital filters. The problem of designing these filters is investigated both in the frequency domain and in the time domain. Modelling delay is used in the time domain to obtain the optimal values of the control filter coefficients in the least-square sense. The sound field can be estimated with sensors placed closed to the walls and the ceiling.
    Original languageEnglish
    Title of host publicationProceedings of Sixth International Congress on Sound and Vibration
    Place of PublicationLyngby
    PublisherDepartment of Acoustic Technology, Technical University of Denmark
    Publication date1999
    Pages215-224
    Publication statusPublished - 1999
    Event6th International Congress on Sound and Vibration - Kgs. Lyngby, Denmark
    Duration: 5 Jul 19998 Jul 1999
    Conference number: 6

    Conference

    Conference6th International Congress on Sound and Vibration
    Number6
    CountryDenmark
    CityKgs. Lyngby
    Period05/07/199908/07/1999

    Cite this

    Orozco, A. (1999). An approach to global equalisation in a rectangular room at low frequencies. In Proceedings of Sixth International Congress on Sound and Vibration (pp. 215-224). Department of Acoustic Technology, Technical University of Denmark.