This question already has an answer here:
- MacBook Pro (mid-2012) Microphone Input 7 answers
MacBook Pro Retinas dropped the line-in (microphone) jack that previous MacBook Pros had. Sometimes I want to plug in a 1/8" microphone, but there's no option to switch the input from "internal microphone" to "line in".
Is there a way through the command line or 3rd party utility to reverse the direction of the headphone jack to use it as a line in for a microphone?