语音信号的采集与处理，数字信号处理课设，数学方法是部分子空间法，分析了该信号的时域、频域、倒谱，循环谱等。- Acquisition and Processing of the speech signal, digital signal processing class-based, Mathematics is part of the subspace, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc.