Speex  1.2~beta4
Modules
Here is a list of all modules:
oSpeex encoder and decoder
oSpeexBits: Bit-stream manipulations
oVarious definitions for Speex callbacks supported by the decoder.
oSpeexEchoState: Acoustic echo canceller
oSpeexHeader: Makes it easy to write/parse an Ogg/Speex header
oJitterBuffer: Adaptive jitter buffer
oSpeexPreprocessState: The Speex preprocessor
\SpeexStereoState: Handling Speex stereo files