FDNTB: The Feedback Delay Network Toolbox

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    Abstract

    Feedback delay networks (FDNs) are recursive filters, which are widely used for artificial reverberation and decorrelation. While there exists a vast literature on a wide variety of reverb topologies, this work aims to provide a unifying framework to design and analyze delay-based reverberators. To this end, we present the Feedback Delay Network Toolbox (FDNTB), a collection of the MATLAB functions and example scripts. The FDNTB includes various representations of FDNs and corresponding translation functions. Further, it provides a selection of special feedback matrices, topologies, and attenuation filters. In particular, more advanced algorithms such as modal decomposition, time-varying matrices, and filter feedback matrices are readily accessible. Furthermore, our toolbox contains several additional FDN designs. Providing MATLAB code under a GNU-GPL 3.0 license and including illustrative examples, we aim to foster research and education in the field of audio processing.
    Original languageEnglish
    Title of host publicationProceedings of the International Conference on Digital Audio Effects
    PublisherDAFx
    Pages211-218
    Number of pages8
    Publication statusPublished - 2020
    MoE publication typeA4 Conference publication
    EventInternational Conference on Digital Audio Effects - Virtual (Initially Vienna), Vienna, Austria
    Duration: 9 Sept 202011 Sept 2020
    Conference number: 23
    https://dafx2020.mdw.ac.at/eDAFx2020/index.html
    https://dafx2020.mdw.ac.at/

    Publication series

    NameProceedings of the International Conference on Digital Audio Effects
    ISSN (Electronic)2413-6689

    Conference

    ConferenceInternational Conference on Digital Audio Effects
    Abbreviated titleDAFx
    Country/TerritoryAustria
    CityVienna
    Period09/09/202011/09/2020
    Internet address

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