Robin2:
I intended to exclude "normal fidelity" as well. An Arduino is only capable of really crap sound on a single channel....R
thats a bummer haha, what about interfacing it to a phone so to send the 4 independent microphone signals to the phone for conversion/ replacing the internal microphone for other applications either through type c/microusb. Or would something like that require a special evaluation board ?
sorry for bombarding you with questions haha.