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- W2295370733 abstract "A novel technique of unmasking to repair the degradation in sources separated by spectrogram masking is proposed. Our approach is based on explicit knowledge of the musical audio at note level from a score-audio alignment, which we termed Informed Source Separation (ISS). Such knowledge allows the spectrogram energy to be decomposed into note-based models. We assume that a spectrogram mask for the solo is obtained and focus on the problem of repairing audio resulting from applying the mask. We evaluate the spectrogram as well as the harmonic structure of the music. We either search for unmasked (orchestra) partials of the orchestra to be transposed onto a masked (solo) region or reshape a solo partial with phase and amplitude imputed from unmasked regions. We describe a Kalman smoothing technique to decouple the phase and amplitude of a musical partial that enables the modification to the spectrogram. Audio examples from a piano concerto are available for evaluation." @default.
- W2295370733 created "2016-06-24" @default.
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- W2295370733 date "2010-01-01" @default.
- W2295370733 modified "2023-09-26" @default.
- W2295370733 title "INFORMED SOURCE SEPARATION OF ORCHESTRA AND SOLOIST" @default.
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