中文说明：重要参数的提取，是国外的成品模型，包含了阵列信号处理的常见算法，用于信号特征提取、信号消噪，实现了对10个数字音的识别程序使用起来非常方便。
English Description：
Important parameters extraction is foreign product model, contains the common array signal processing algorithms, used for signal feature extraction, signal denoising, realized the 10 digital audio recognition program is very convenient to use.