speex的编解码器源代码,1.2 beta版, 带回声消除功能,我在VS 2005下编译成功,并用输入文件测试的方式测试了它的回音消除功能,效果不错-speex codec source code, 1.2 beta version, back to the sound of the elimination of functions, I successfully compiled under VS 2005, and the way the test input file to test t