Metrics for performance assessment of mixed-order Ambisonics spherical microphone arrays

Sylvain Emmanuel Favrot, Marton Marschall

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

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    Abstract

    Mixed-order Ambisonics (MOA) combines planar (2D) higher order Ambisonics (HOA) with lower order
    periphonic (3D) Ambisonics. MOA encoding from spherical microphone arrays has the potential to provide
    versatile recordings that can be played back using 2D, 3D or mixed systems. A procedure to generate
    suitable layouts for a given MOA combination order is introduced consisting of rings of microphones at
    several elevation angles for any given MOA combination order. Robustness and directivity measures were
    evaluated for four MOA layouts. Results showed that MOA vertical directivity was similar to 3D HOA and
    that MOA horizontal directivity was in between the planar and periphonic order.
    Original languageEnglish
    Title of host publicationProceedings of the AES 25th UK CONFERENCE
    Number of pages7
    Publication date2012
    Publication statusPublished - 2012
    EventAES 25th UK CONFERENCE: Spatial Audio in Today’s 3D World - University of York’s Music Research Centre, York, United Kingdom
    Duration: 25 Mar 201227 Mar 2012

    Conference

    ConferenceAES 25th UK CONFERENCE
    LocationUniversity of York’s Music Research Centre
    Country/TerritoryUnited Kingdom
    CityYork
    Period25/03/201227/03/2012

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