数字语音信号处理\FIRBandPass.m ................\FIRHighPass.m ................\FIRLowPass.m ................\IIRBandPass.m ................\IIRHighPass.m ................\IIRLowBass.m ................\加噪后.m ................\噪声构建.m ................\时域波形图.m ................\课设测试.wav ................\频谱图.m 数字语音信号处理