Which /dev/… (devices) are the microphone and speaker in Mac OS X?

Question

I have a MacBook Alluminium and I want to capture the microphone in a RAW format and output a RAW audio through the speakers, in a standard way, i.e., using

Answer 1

None of them. Not all devices have /dev nodes on Mac OS X, and audio devices are not among them. There is no way I'm aware of to access audio devices using only "standard" terminal commands. sox can be used if you install it, but it is not shipped with Mac OS X.

The primary supported API to access audio devices on Mac OS X is Core Audio. Third-party libraries, such as libao, are also available which can expose a simpler, platform-independent interface to Core Audio.