Compared with the general filter of FIR and IIR, in order to make the filter can automatically achieve the best filtering effect according to some criteria, a method of combining LMS adaptive algorithm with lattice filter structure is adopted. On the basis of TMS320C6713 development board, the hardware platform of verifying audio signal processing algorithm was built by using DSP technology, and engineering realization was completed through DSP software programming in the integrated development environment CCS. The experimental results show that this filter has low computational complexity and fast realization, which has real-time performance and filtering effect.%区别于普通的FIR,IIR滤波器,为了使滤波器能够按照某种准则自动且较快地达到最佳滤波效果,采用了LMS自适应算法和格型滤波结构相结合的方法.它利用DSP技术在TMS320C6713开发板上构建了验证该音频信号处理算法的硬件平台,并在集成开发环境CCS通过DSP的软件编程完成其工程实现.实验结果表明,该滤波器计算复杂度低,实现速度快,具有良好的实时性和滤波效果.
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