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環境噪聲消除(ENC)

ENC是一種利用DSP内置算法程序達到對環境噪聲,抵消抑制的數字語音處理功能。通過分别拾取近場語音與遠場噪聲的mic0、mic1兩種音頻信号,經過FFT之後,從mic0的信号頻譜中減去mic1的噪聲頻譜,從而得到背景清晰地語音輸出。

1.針對非穩态噪聲與穩态噪聲,可以達到35~40dB的降噪效果
2.兩隻全方向麥克風要求具有8~14cm以上的距離,
3.DSP/SOC 具有先進的語音譜減算法程序。


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