Estimation of the Direct-to-Reverberant Energy Ratio using a Spherical Microphone Array

Hanchi Chen, Prasanga Samarasinghe, Thushara Abhayapala, Wen Zhang

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

    Abstract

    This paper proposes a practical approach to estimate the direct-toreverberant energy ratio (DRR) using a spherical microphone array without having knowledge of the source signal. We base our estimation on a theoretical relationship between the DRR and the coherence estimation function between coincident pressure and particle velocity. We discuss the proposed methods ability to estimate the DRR in a wide variety of room sizes, reverberation times and source receiver distances with appropriate examples. Test results show that the method can estimate the room DRR for frequencies between 199 - 2511 Hz, with 3 dB accuracy.
    Original languageEnglish
    Title of host publicationIEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015
    Place of PublicationTBC
    PublisherIEEE
    EditionPeer Reviewed
    ISBN (Print)9781479974504
    DOIs
    Publication statusPublished - 2015
    EventIEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015 - New Paltz, United States
    Duration: 1 Jan 2015 → …

    Conference

    ConferenceIEEE Workshop on Applications of Signal Processing to Audio and Acoustics, WASPAA 2015
    Period1/01/15 → …
    OtherOctober 18-21, 2015

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