These program is an Eliza like chatterbot,bots like Eliza are the results of researchs in Artificial Intelligence (more specificly: in NLP and NLU) NLP: Natural Language Processing, NLU: Natural Language Understanding

一个高质量的声学回声消除范例源程序，包括详细的NLMS和NLP算法,A high-quality acoustic echo cancellation example source code, including the detailed and NLP algorithm NLMS

Modular Audio Recognition Framework-MARF is a general cross-platform framework with a collection of algorithms for audio (voice, speech, and sound) and natural language text analysis and recognition along with sample applications (identification, NLP

webrtc 的回声抵消(aec、aecm)算法主要包括以下几个重要模块：1.回声时延估计 2.NLMS(归一化最小均方自适应算法) 3.NLP（非线性滤波） 4.CNG(舒适噪声产生），一般经典aec算法还应包括双端检测(DT)。考虑到webrtc使用的NLMS、NLP和CNG都属于经典算法范畴，故只做简略介绍，本文重点介绍webrtc的回声时延估计算法,这也是webrtc回声抵消算法区别一般算法(如视频会议中的算法)比较有特色的地方。-webrtc echo canceller (aec,