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- W2147437692 abstract "In this paper, we propose a semi-supervised algorithm based on sparse non-negative matrix factorization (NMF) to improve separation of speech from background music in monaural signals. In our approach, fixed speech basis vectors are obtained from training data whereas music bases are estimated on-the-fly to cope with spectral variability while preserving small NMF dimensionality for decreased computation effort. In a large-scale experimental evaluation with 168 speakers from the TIMIT database, we compare the semi-supervised method to supervised NMF with an explicit background music model. Our results reveal that the semi-supervised method outperforms supervised NMF at low speech-to-music ratios, and that sparsity constraints on the music spectra to enforce harmonicity can improve separation performance." @default.
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- W2147437692 date "2012-03-01" @default.
- W2147437692 modified "2023-09-23" @default.
- W2147437692 title "Supervised and semi-supervised suppression of background music in monaural speech recordings" @default.
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- W2147437692 doi "https://doi.org/10.1109/icassp.2012.6287817" @default.
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