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NOISE SUPPRESSION IN SAMPLED SPEECH: DIGITAL SAMPLING WITH TIME FILTER COEFFIECIENTS
NOISE SUPPRESSION IN SAMPLED SPEECH: DIGITAL SAMPLING WITH TIME FILTER COEFFIECIENTS
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机译:采样语音中的噪声抑制:带时间滤波器系数的数字采样
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摘要
The method involves applying noisy input speech signals (S(t)) to a sampler (1a). The signal is divided, with part of the signal passed to a noisy signal processor (100). The processor extracts noisy energy signals (10) and passes them to an S/N ratio estimator (11). The signal is then passed to a gain calculation circuit (12) before input to a circuit determining the filter function coefficient. The output C(nT) from the filter function circuit is applied to a FIR filter (14) in the second channel.
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