首先基于DSP（SEED-DEC5416）的语音采集，其次通过低通和带通的FIR滤波器进行除燥-the speech signal processing and then using low and bandpass FIR filter to remove noise

对输入的语音信号运用短时能量函数进行去静音，然后把去掉静音帧之后的信号进行重组。-remove the mute of the speech signal (using short-term energy function), and then remove the signal mute frame after restructuring.

FIR IIR 滤波器的制作，产生高斯白噪声并通过滤波器滤波-FIR IIR filter,add and remove WGN