中文说明：
比较两个不同的倒频谱分析方法的一个有限的时间框架的言论,即基于fft算法的传统方法(与框架展开复杂的倒频谱),和一个分析方法基于求解有限阶分子多项式的根的倒频谱和直接计算多项式根的位置。
English Description：
Compare two different cepstrum analysis methods in a limited time frame, that is, the traditional method based on FFT algorithm (expand the complex cepstrum with the frame), and an analysis method based on solving the cepstrum of roots of finite order molecular polynomials and directly calculating the positions of roots of polynomials.