Blind Separation of Audio Mixtures Through Nonnegative Tensor Factorization of Modulation Spectrograms

Tom Barker, Tuomas Virtanen

    Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

    8 Sitaatiot (Scopus)

    Abstrakti

    This paper presents an algorithm for unsupervised single-channel source separation of audio mixtures. The approach specifically addresses the challenging case of separation where no training data are available. By representing mixtures in the modulation spectrogram (MS) domain, we exploit underlying similarities in patterns present across frequency. A three-dimensional tensor factorization is able to take advantage of these redundant patterns, and is used to separate a mixture into an approximated sum of components by minimizing a divergence cost. Furthermore, we show that the basic tensor factorization can be extended with convolution in time being used to improve separation results and provide update rules to learn components in such a manner. Following factorization, sources are reconstructed in the audio domain from estimated components using a novel approach based on reconstruction masks that are learned using MS activations, and then applied to a mixture spectrogram. We demonstrate that the proposed method produces superior separation performance to a spectrally based nonnegative matrix factorization approach, in terms of source-to-distortion ratio. We also compare separation with the perceptually motivated interference-related perceptual score metric and identify cases with higher performance.

    AlkuperäiskieliEnglanti
    Sivut2377-2389
    Sivumäärä13
    JulkaisuIeee-Acm transactions on audio speech and language processing
    Vuosikerta24
    Numero12
    DOI - pysyväislinkit
    TilaJulkaistu - 1 jouluk. 2016
    OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

    Julkaisufoorumi-taso

    • Jufo-taso 2

    !!ASJC Scopus subject areas

    • Signal Processing
    • Media Technology
    • Instrumentation
    • Acoustics and Ultrasonics
    • Linguistics and Language
    • Speech and Hearing
    • Electrical and Electronic Engineering

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