实现了对10个数字音的识别程序有较好的参考价值，进行波形数据分析,利用自然梯度算法，最小二乘回归分析算法，借鉴了主成分分析算法（PCA），包括面积、周长、矩形度、伸长度。- Realization of 10 digital audio recognition program There are good reference value, Waveform data analysis, Use of natural gradient algorithm, Least-squares regression analysis algorithm, It draws on principal component analysis algorithm (PCA), Including the area, perimeter, rectangular, elongation.