speex-1.2beta3源代码，音频编解码，带回声消除-speex-1.2beta3 source code, audio codec, the sound back to the elimination of

一种压缩编码，其实，我只是见过，在国外网站上下载的不知道是否可以满足你的要求-A compression coding, in fact, I just seen abroad download on the website do not know whether you meet the requirements of

speex一个开源的音频编解码器,完全免费，无专利限制-Speex is an open source Audio codec.Its can be get for free to anyone who interests.