数字话音回波抵消器调试环境的设计

Design of Digital Speech Echo Canceller Debugging Environment

介绍了一种采用MC33120和声码器实现的数字话音回波抵消器软件的硬件调试环境。着重介绍了调试环境中,外部硬件电路的回波信号量的设定方法。

In this paper,a hardware debugging environment of digital speech echo canceller software implemented using MC33120 &vocoder is presented. And the magnitude of the echo signal of the outer hardware circuit setting method is especially described.