I have gotten the speex library to compile into my project thanks to
Compile Speex For iPhone Can’t see nothing but the source code. However I've never used speex before, let alone with the iPhone file system. Has anyone every tried this, or can anyone point me at something that might help? I'm trying to convert from audio recorded with AVAudioRecorder, so the input format can be manipulated a bit, but it always comes in with a CAFF wrapper (another problem I will be posting about shortly...)