Synthesis of room transfer function over a region of space by multiple measurements using a higher-order directional microphone

P. N. Samarasinghe, T. D. Abhayapala, M. A. Poletti

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

    3 Citations (Scopus)

    Abstract

    Spatial sound field recording and reproduction in reverberant rooms require the measurement of room transfer functions (RTF) and corresponding compensation such as room equalization to avoid unintended effects. Typically, the RTF rapidly varies over the room and hence requires a large number of point to point measurements to characterize the room. This paper provides (i) an efficient parameterization of the three dimensional acoustic transfer function over a region of space and (ii) a method to merge distributed multiple measurements by a higher order microphone (such as a spherical array) to analyze and synthesize the room transfer function over a region of space. The proposed method is shown to be a practical way of measuring the RTF over large areas with a significantly reduced number of measurements and improved robustness.

    Original languageEnglish
    Title of host publication2014 IEEE China Summit and International Conference on Signal and Information Processing, IEEE ChinaSIP 2014 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages6-10
    Number of pages5
    ISBN (Electronic)9781479954032
    DOIs
    Publication statusPublished - 3 Sept 2014
    Event2nd IEEE China Summit and International Conference on Signal and Information Processing, IEEE ChinaSIP 2014 - Xi'an, China
    Duration: 9 Jul 201413 Jul 2014

    Publication series

    Name2014 IEEE China Summit and International Conference on Signal and Information Processing, IEEE ChinaSIP 2014 - Proceedings

    Conference

    Conference2nd IEEE China Summit and International Conference on Signal and Information Processing, IEEE ChinaSIP 2014
    Country/TerritoryChina
    CityXi'an
    Period9/07/1413/07/14

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