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- W2045249382 abstract "Among various speech enhancement methods, dual-microphone methods are of a great importance for their low cost implementation and for exploiting spatial-filtering benefits of the microphone arrays. Coherence based methods are well-known as efficient two-microphone noise reduction techniques. These techniques do not work well, when received noise signals are correlated. These can be improved when the cross power spectral density (CPSD) of noise is available. In this paper, we propose an iterative approach for estimation of the noise CPSD to be employed in coherence based methods. We compare the proposed iterative noise CPSD estimation with a noise CPSD estimation technique based on voice activity detector (VAD), both of which are employed in a two-microphone speech enhancement, separately. Evaluation results show that the two-microphone speech enhancement scheme utilizing the proposed noise CPSD estimation technique performs superior than the enhancement system using the VAD-based noise CPSD estimation." @default.
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- W2045249382 date "2009-03-01" @default.
- W2045249382 modified "2023-10-16" @default.
- W2045249382 title "An iterative noise cross-PSD estimation for two-microphone speech enhancement" @default.
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- W2045249382 doi "https://doi.org/10.1016/j.apacoust.2008.06.005" @default.
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