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- W2156860228 abstract "A microphone array beamformer combined with a post-filter estimation based on spatial smoothing can deliver good noise attenuation preserving the speech component, however, with disturbing musical tones. On the other hand, the temporal smoothing of the decision-directed (DD) a priori signal-to-noise ratio (SNR) estimation for single-channel noise reduction can suppress musical tones well, however, with speech distortion particularly in speech onset. Based on these facts, we derive a new data-driven multi channel a priori SNR estimation based on both spatial and temporal smoothing for the use in a beamformer post-filter. The new a priori SNR estimation is able to find an optimum compromise between noise attenuation, quality of the speech component, and musical tones suppression." @default.
- W2156860228 created "2016-06-24" @default.
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- W2156860228 date "2011-05-01" @default.
- W2156860228 modified "2023-09-27" @default.
- W2156860228 title "A data-driven post-filter design based on spatially and temporally smoothed a priori SNR" @default.
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- W2156860228 doi "https://doi.org/10.1109/icassp.2011.5946347" @default.
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