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A Hybrid DSP/Deep Learning Approach to Real-Time Full-Band Speech Enhancement
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A Hybrid DSP/Deep Learning Approach to Real-Time Full-Band Speech Enhancement
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Despite noise suppression being a mature area in signal processing, it remains highly dependent on fine tuning of estimator algorithms and parameters. In this paper, we demonstrate a hybrid DSP/deep learning approach to noise suppression. A deep neural network with four hidden layers is used to estimate ideal critical band gains, while a more traditional pitch filter attenuates noise between pitch harmonics. The approach achieves significantly higher quality than a traditional minimum mean squared error spectral estimator, while keeping the complexity low enough for real-time operation at 48 kHz on a low-power processor.
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Cited by 1 Pith paper
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