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.

Ogg格式的音频解码播放,该dll已通过vs2008测试通过,适合于本地播放器和游戏音频播放-Ogg format audio decoder playback, the dll has been tested through the vs2008, suitable for the local players and game audio playback