An overview of informed audio source separation

Abstract : Audio source separation consists in recovering different unknown signals called sources by filtering their observed mixtures. In music processing, most mixtures are stereophonic songs and the sources are the individual signals played by the instruments, e.g. bass, vocals, guitar, etc. Source separation is often achieved through a classical generalized Wiener filtering, which is controlled by parameters such as the power spectrograms and the spatial locations of the sources. For an efficient filtering, those parameters need to be available and their estimation is the main challenge faced by separation algorithms. In the blind scenario, only the mixtures are available and performance strongly depends on the mixtures considered. In recent years, much research has focused on informed separation, which consists in using additional available information about the sources to improve the separation quality. In this paper, we review some recent trends in this direction.
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Antoine Liutkus, Jean-Louis Durrieu, Laurent Daudet, Gaël Richard. An overview of informed audio source separation. WIAMIS, 2013, Paris, France. pp.1-4, ⟨10.1109/WIAMIS.2013.6616139⟩. ⟨hal-00958661⟩

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