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- W2396173655 abstract "Conventional single-channel source separation (SCSS) algorithms are mostly focused on estimating the spectral amplitude of the underlying sources extracted from a mixture. The importance of phase information in source separation and its positive impact on improving the achievable performance is not adequately studied yet. In this work, we propose a phase estimation method to enhance the spectral phase of the underlying signals in SCSS framework. The proposed method relies on multi-pitch estimation and phase decomposition followed by applying temporal smoothing filters on the unwrapped mixture phase. We consider the combination of the proposed phase estimator with ideal binary mask and non-negative matrix factorization, as two well-known SCSS methods for separating the spectral amplitudes. Our results show that certain improvements in quality and intelligibility is achievable via replacing the mixture phase with the estimated one when reconstructing the sources. Index Terms: Phase estimation, single-channel source separation, perceived quality, speech intelligibility." @default.
- W2396173655 created "2016-06-24" @default.
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- W2396173655 date "2015-09-06" @default.
- W2396173655 modified "2023-10-16" @default.
- W2396173655 title "Improved phase reconstruction in single-channel speech separation" @default.
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- W2396173655 doi "https://doi.org/10.21437/interspeech.2015-416" @default.
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