The results show that: (1) In order to improve the effect of adaptive filtering in acoustic echo canceling, the important path is to adopt new hardware and new algorithm.
As the hardware base of adaptive protection, fast development of microcomputer system renders an extensive prospect for adaptive theory application.
作为自适应保护的硬件基础，微机系统的迅猛发展使得自适应原理的应用前景更加广泛。
3
It explained the principle of line spectrum enhancer, and provided the values of the software parameters giving from experiments, and hardware design of an adaptive line spectrum enhancer.