主要介绍linphone的代码结构介绍，并且分析的相关的关键函数，附图，有助于整体了解linephone。-Introduces the structure introduced linphone code, and analysis related to key functions, drawings, to help the overall understanding of linephone.

Tracking of Nonstationary Noise Based on Data-Driven Recursive Noise Power Estimation

This paper presents a modified version of the twostep least-mean-square (LMS)-type adaptive algorithm motivated by the work of Gazor. We describe the nonstationary adaptation characteristics of this modified two-step LMS (MG-LMS) algorithm fo