说明：  由于语音对话编解码需要一个免费的开源软件，所以诞生了 Speex 库，可以 在任何开源软件中使用。实际上，Speex 对于语音对话来讲，相当于 Vorbis[一种 可将声音来源加以压缩的编码软件，开放源码且免版权]对于音频/音乐。和大多 数语音编解码库不一样的是，Speex 不是为移动电话而设计的，而是为分组网络 的 VOIP(Voice over IP)应用程序，同时支持基于文件的压缩。
(Due to the the voice dialogue codec need a free, open source software, so the birth of the Speex library, you can use any open source software. In fact, Speex for voice dialogue is concerned, the equivalent Vorbis [a sound source to be compressed encoding software, open source and free of copyright] For audio/music. Is not the same and most voice codec library, Speex is not designed for mobile phones, but for VOIP (Voice over IP) packet network applications, and supports file-based compression.)