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• W1987828551 abstract "In this paper, we propose a method for estimating a signal-to-noise ratio (SNR) in order to improve the performance of a dual-microphone speech enhancement algorithm. The proposed method is able to reliably estimate both a priori and a posteriori SNRs by exploring a direction-of-arrival (DOA)-based local SNR that is defined by using spatial cues obtained from dual-microphone signals. The estimated a priori and a posteriori SNRs are then incorporated into a Wiener filter. Consequently, it is shown from an objective perceptual evaluation of speech quality (PESQ) comparison and a subjective listening test that a speech enhancement algorithm employing the proposed SNR estimate outperforms those using conventional single- or dual-microphone speech enhancement algorithms such as the Wiener filter, beamformer, or phase error-based filter under different noise conditions ranging from 0 to 20 dB." @default.
• W1987828551 created "2016-06-24" @default.
• W1987828551 creator A5084972635 @default.
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• W1987828551 date "2014-03-01" @default.
• W1987828551 modified "2023-10-14" @default.
• W1987828551 title "Noise variance estimation based on dual-channel phase difference for speech enhancement" @default.
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• W1987828551 doi "https://doi.org/10.1016/j.dsp.2013.11.012" @default.
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