这是一篇介绍回声消除方面的paper，里面介绍了一种回声消除的优化方法，如果你对语音方面的东西感兴趣，那么这篇文章值得一看。-This is an echo on the Elimination of paper, which introduces a Echo Cancellation of the optimization method, If you have the right voice things interesting, so this article is worth look