Abstract
We combine the use of a Bayesian NMF framework to add temporal smoothness priors, with a supervised prior learning of the smoothness parameters on a database of solo musical instruments. The goal is to separate main instruments from realistic mono musical mixtures. The proposed learning step allows a better initialization of the spectral dictionaries and of the smoothness parameters. This approach is shown to outperform the separation results compared to the unsupervised version.
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Coïc, M., Burred, J.J. (2012). Bayesian Non-negative Matrix Factorization with Learned Temporal Smoothness Priors. In: Theis, F., Cichocki, A., Yeredor, A., Zibulevsky, M. (eds) Latent Variable Analysis and Signal Separation. LVA/ICA 2012. Lecture Notes in Computer Science, vol 7191. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-28551-6_35
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DOI: https://doi.org/10.1007/978-3-642-28551-6_35
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