基于互功率谱的时延估计，实现了对10个数字音的识别程序基于分段非线性权重值的Pso算法，有循环检测，周期性检测，采用了小波去噪的思想，仿真效果非常好。- Based on the time delay estimation of power spectrum, Realization of 10 digital audio recognition program Based on piecewise nonlinear weight value Pso algorithm, There are cycle detection, periodic testing, Using wavelet denoising thought, Simulation of the effect is very good.