How can I Access/extract raw(headless) audio data from a caf file on iPhone?

Question

I am working on a project that requires me to send raw headerless ulaw or linear pcm data to a server.

I am using the AVAudioRecorder and I can save out audio files

Answer 1

If you use the Audio Queue API for recording, instead of AVAudioRecorder, you will have access to raw PCM sample buffers, and can write those out to a flat file for later sending to your server.